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Optonet Vision Unit
Click on the arrow to start
The Optonet Vision Unit is a state-of-the-art freeware software,
CE marked Class 1 medical device, registered with the Medicines and Healthcare products
Regulatory Agency (MHRA), with reference number: 5943.
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VA measurement is the single mostimportant clinical test for theassessment of visual function and hashuge health, economic and socialimplications
Click for next slide
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Despite the enormous impact of VAmeasurement, many clinical settingsstill use outdated VA charts that areunreliable and inaccurate(and often not even equivalent)
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The Optonet Vision Unit contains acomprehensive selection of logMAR VAcharts together with a battery of visiontests for eyecare.
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Visual Acuity
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LogMAR VA chart with Sloan letters (ETDRS ) in their original arrangement .
It is considered the gold standard for VA for its better accuracy and reliability
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Equal number of letters per row (5)
Sloan letters
of similar legibility
Geometric progression
 of letter size
Space uniformity
between letters
 and rows (0.1 log)
Letter by letter VA scoring system
LogMAR VA chart with Sloan letters (ETDRS ) in their original arrangement .
It is considered the gold standard for VA for its better accuracy and reliability
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ETDRS logMAR chart with Sloan letters in their revised* arrangement, in order tohomogenize the level of difficulty per line.
*As derived from a study involving 7420 eyes
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LogMAR VA chart with British letters (Lovie-Bailey) - according to the original BritishStandard: BS 4274-1: 1968
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LogMAR VA chart with British letters  –  according to the latest British StandardBS 4274-1: 2003
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LogMAR VA chart with round numbers in a 5x4 proportion
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LogMAR VA chart with square shaped numbers in 5x5 grid (like Snellen tumbling “Es”)
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LogMAR VA chart with Landolt C rings. It can be displayed in either 5 or 8 differentpositions  (2 options)
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LogMAR VA chart with “Tumbling E” optotypes in a 5x5 grid
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Vanishing Optotypes for VA
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Vanishing  Visual Acuity ETDRS charts designed for early detection
of Age-related Macular Degeneration (AMD)
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Vanishing  Visual Acuity charts with Landolt rings for early detection of AMD
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Children’s Visual Acuity
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Gafas Rotas
Children’s logMAR VA chart with Landolt Rings
(Broken Glasses)
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Children’s logMAR VA chart with Symmetrical letters
Any combination of letters can be chosen from the following:  X, V, O, H, U, T
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The vision Unit can show single rows of 5 Symmetrical letters with crowding  effect in alogMAR progression. Specially designed for the plotting of VA Percentile Graphs
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LogMAR ETDRS chart with Symmetrical letters (H, O, T, V) and crowding effect, as described inthe “Amblyopia Treatment Study Protocol”.
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Options for themeasurement of VA
Each and every VA chart offers a wide variety of options to assist clinicalmeasurement. Some of those will be shown next
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Any line of letters (or symbols) can be highlighted with red lines on both sides
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A row of letters can also be isolated, and its size changed
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In addition to crowding from the linear display, surround bars add contourinteraction to make acuity values from this format closer to those from the LogMARchart display.  The arrow can be used to point to the letter of interest (very useful foryoung children).
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We can keep adding the next row down of smaller letters
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Columns of letters (or symbols) of equal size can be isolated
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But we can also isolate a column with letters in a decreasing size; useful for a quickestimation of visual acuity
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A single letter can be isolated, with or without contours (for crowding effect )
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The vision Unit also allows changing randomly the distribution of letters (or symbols),
to prevent the patient from memorizing the charts.
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Automated VA calculation for easy logarithmic measurement: activated by pressing thenumber of letters seen per line (0 to 5) on the keyboard. When completed, VA values areshown in different scales
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Accuracy and reliability can be improved by adding middle sized rows of letters
(changing size by 0.05 log steps, rather than the standard step of 0.1 log).
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Refraction: Sphere
The vision Unit offers a wide variety of vision tests for a thorough visual exam. We willreview them, starting with refraction charts
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Duochrome mask for all logMAR visual acuity charts
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Various Duochrome  charts are also included, such as this letter chart
(letter combinations and size can be easily changed)
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 37 of 142
Rings Duochrome chart
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 38 of 142
Duochrome test with dots
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 39 of 142
Duochrome with single line of letters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 40 of 142
Grid to be used with binocular ±0.50 D cross  cylinders (minus axes at 90º) ,
for sphere power calculation
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 41 of 142
Refraction: Astigmatism
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 42 of 142
Dot target for cross-cylinder testing
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 43 of 142
Verhoeff rings for cross-cylinder test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 44 of 142
Clock Dial test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 45 of 142
Fan & Block test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 46 of 142
Fan & Block test for Cyl axis calculation. Arrow is turned in 1 degree steps, until patient seesboth sides appearing equally sharp
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 47 of 142
Fan & Block test for power calculation. Cylinder power is added until both sets of linesappear equally sharp
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 48 of 142
Binocular Balance
Clinical Refraction should always be completed with a Binocular Balance, to ensure
equal accommodative requirements for both eyes
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 49 of 142
Binocular Balance test to be used with vertical prisms
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 50 of 142
Turville Infinity Binocular Balance test to be used with a septum (which can be placed on the
 near vision rod of the phoropter head)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 51 of 142
Polarized Binocular Refraction
& Binocular Balance
(Only for passive 3D monitors)
The vision Unit includes a variety of binocular charts that require a 3D passive monitor (orTV), together with circular polarized filters, for ocular dissociation
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 52 of 142
Polarized visual acuity chart  for binocular refraction: here RE can be refracted (RE observesall the letters), while LE can only see the central column ( for binocularity)
UBM
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 53 of 142
Polarized dot target for cross cylinder under binocular conditions.
In this example the chart is only seen by the right eye, through the filters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 54 of 142
Polarized Binocular Balance test. The top row is only seen by the right eye,
the lower by left eye, while the middle one is observed with both eyes
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 55 of 142
In the Polarized Binocular Balance test, letters can be randomly distributed, their size can bechanged, and the same or different letters can be shown to each eye
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 56 of 142
Polarized Binocular Balance chart: the first two letters of each row are only seen by the RE,the last two by the LE, and the central column is observed by both eyes
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 57 of 142
All polarized Binocular Balance tests also offer the option to show either different or equalletters to each eye, as in this image
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 58 of 142
Letter lines can also be isolated in the Polarized Binocular Balance chart
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 59 of 142
Duochrome polarized Binocular Balance test, especially useful in patients with different
 VAs in each eye, where it is not possible to use conventional binocular balance tests
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 60 of 142
Near Vision Charts
The vision Unit version for near vision incorporates various tests and optotypes to assess near VA
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 61 of 142
Texts in logarithmic progression for near vision (the vision Unit has to be calibrated forviewing distance first). The text of interest  can be pointed with red lines
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 62 of 142
Texts lines for near vision can also be isolated
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 63 of 142
Binocular Vision
A wide variety of binocular tests is also available in the vision Unit
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 64 of 142
Heterophoria
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 65 of 142
Test for Horizontal Heterophoria measurement using a vertical prism.
The test is calibrated in prism diopters for the viewing distance
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 66 of 142
Test for Horizontal Heterophoria measurement using the Maddox rod.
The test is calibrated in prism diopters for the viewing distance
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 67 of 142
Test for Vertical Heterophoria measurement using the Maddox rod,
calibrated in prism diopters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 68 of 142
Fixation Disparity
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 69 of 142
Horizontal Fixation Disparity (FD) test to measure horizontal associated phoria (the prism thatcompensates FD). Red/blue filters required
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 70 of 142
Horizontal Fixation Disparity test for FD measurement in minutes of arc
(calibrated for the chosen viewing distance)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 71 of 142
Polarized version of the Horizontal Fixation Disparity test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 72 of 142
Vertical Fixation Disparity test, for vertical associated phoria measurement
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 73 of 142
Vertical Fixation Disparity test for FD measurement (in minutes of arc)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 74 of 142
Polarized version of the Vertical Fixation Disparity test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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Foveal Suppression
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 76 of 142
Foveal Suppression test with letters in decreasing sizes. Letters are seen by the right and left eyealternatively, whereas the central column is seen by both eyes (with red/blue filters)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 77 of 142
There is also the option to show the first two letters of each row to one eye,
the last two to the other, while  the central column is seen by both eyes
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 78 of 142
The Foveal Suppression test also allows to isolate rows of letters
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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The polarized version of the Foveal Suppression test offers all the options  shown
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 80 of 142
Worth Suppression test with filters red/blue. The Unit allows to change the size of the circles,in degrees. (To vary the size of the retinal area stimulated)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 81 of 142
Polarized version of the Worth Suppression test
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 82 of 142
Stereoacuity
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 83 of 142
Contour Stereoacuity test (local stereopsis), to be viewed with red/blue filters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 84 of 142
Polarized version of the contour Stereoacuity test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 85 of 142
Random-dot Stereoacuity Test  for red/blue filters. It is possible to choose the type of lettersor figures to show in 3D, as well as their size
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 86 of 142
Random-dot Stereoacuity test with Symmetrical letters as stimuli. There  are no monocularclues when viewed through the filters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 87 of 142
The polarized version of the Random-dot Stereoacuity test offers the same options;
here with Sloan letters as stimuli
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 88 of 142
Random-dot Stereoacuity test, with Geometrical shapes as stimuli
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 89 of 142
Aniseikonia
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 90 of 142
Aniseikonia with red/blue filters. The size can be changed in 0.25% steps (for an accuracyof 0.25%)
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 91 of 142
In order to quantify aniseikonia, the size of the image seen by the right eye is changed
to match the size of the image perceived by the left eye
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 92 of 142
Polarized version of the Aniseikonia test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 93 of 142
Cyclorotation
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 94 of 142
Cyclorotation test for red/blue filters
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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 The lines should be rotated until perceived as parallel through the filters. In this examplethere is an Ex-cyclodeviation of 3 degrees
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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The Cyclorotation test shows now an In-cyclodeviation of 2 degrees.
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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Polarized version of the Cyclorotation test
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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Incomitancy
The vision Unit also includes tests to evaluate incomitant deviations
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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Horizontal ocular deviation test, calibrated in prism diopter for the chosen viewing distance
(viewed with red/blue filters)
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
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Vertical ocular deviation test calibrated in prism diopters.
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 101 of 142
Hess Screen test to map incomitant ocular deviations in different gaze directions
 (with red/blue filters)
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 102 of 142
Chart of results in the Hess screen assessment of ocular motility in 9 diagnostic gaze positionsfor each eye
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
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Polarized version of  the Hess-Lancaster test for the assessment of incomitant deviations
C:\Users\Optonet\Desktop\163573_694fd[1].jpg
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 104 of 142
Ocular Health
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Slide 105 of 142
Contrast Sensitivity
Several methods are offered for the assessment of contrast sensitivity
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 106 of 142
Low contrast visual acuity charts. Any level of contrast can be set, from 0 to 2.25 log,
 in 0.15 log steps
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 107 of 142
Contrast sensitivity charts with letters of fixed size  (as proposed by Pelli-Robson).
Any letter size can be selected
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007702-glossy-black-3d-button-icon-arrows-arrow-dotted-left.png
http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 108 of 142
Potential Visual Acuity
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Slide 109 of 142
Potential visual acuity Super-Pinhole to be used in patients with cataracts
and other ocular media opacities
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http://cdn.mysitemyway.com/etc-mysitemyway/icons/legacy-previews/icons/glossy-black-3d-buttons-icons-arrows/007705-glossy-black-3d-button-icon-arrows-arrow-dotted-right.png
Slide 110 of 142
Amsler grids
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Slide 111 of 142
White grid over black background
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Slide 112 of 142
Amsler grid with diagonals for patient with central scotoma
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Slide 113 of 142
Amsler charts – Red grid over Black background
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Amsler charts –  black grid over white background
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Red desaturation test, useful in the detection of visual field defects
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Vision Therapy
The vision Unit offers a complete range of vision procedures for the treatment
 of Convergence Insufficiency (either with red/blue filters or 3D polarized  screen)
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Blocks game for Anti-suppression therapy and binocular coordination
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Polarized version of the Blocks game
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Anaglyph Fusion Circles for the treatment of horizontal fusional vergences
(Convergence & Divergence)
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Fusion Circles Vectograms for the treatment of horizontal fusional vergences
(Convergence & Divergence) – for passive 3D screens only
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Automated forced-choice anaglyph with accommodative control
for the measurement and treatment of horizontal fusional vergences
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Automated forced-choice vectogram with accommodative control
for the measurement and treatment of horizontal fusional vergences
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Automated forced-choice anaglyph with accommodative control for the measurementand treatment of vertical fusional vergences
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Automated forced-choice vectogram with accommodative control for themeasurement and treatment of vertical fusional vergences
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Anaglyph stereograms for the treatment of horizontal fusional vergences. When fused, theimage is perceived in 3D (to monitor patient’s successful compliance)
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Forced-choice random dot stereograms for the treatment of fusional vergences(convergence & divergence). When fused, a 3D image is perceived
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Polarized version of the automated forced-choice random dot stereograms for thetreatment of fusional vergences (convergence & divergence)
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Automated anaglyphs for the measurement and training of horizontal fusional vergences.The patient should click on the letter that is seen in 3D
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Polarized version of the random dot stereogram with automated forced choicemeasurements for horizontal vergences
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 A choice of letters, figures or Landolt rings can be selected as stereoscopic stimuli.Landolt Cs are shown here
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Geometrical figures in the steroscopic random dot charts
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Random dot stereograms for vertical vergence measurement  and treatment
(infra and supra -vergences)
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Polarized version (vectograms) of the random dot stereograms for vertical vergencemeasurement and treatment
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Test for automated forced-choice monocular accommodation facility measurementand training
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Polarized version of  the test for automated forced-choice monocularaccommodation facility measurement and training
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Chart for ocular saccadic and pursuing eye movements
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Options and Configuration
The vision Unit can easily adapted to anyone’s needs and preferences
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The vision Unit incorporates a simple system to calibrate the charts for the
viewing distance at each particular testing room
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Optotype displays can be inverted to adapt to small examination rooms, when a mirror isrequired in order to duplicate distance
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Automated scoring systems for VA and stereoacuity are provided, to  offer a simple and accuratemethod of measurement
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With the vision Unit it is easy to personalize sequences of tests. Pressing the arrows on thekeyboard will take us from one test to the next (or previous) of the sequence
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The End
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