Product category:
Visual Acuity Tests
Visual Acuity Tests
A visual acuity (VA) test measures how well you see the details of a letter or symbol from a specific distance. Distance VA is typically measured at 6m, but 3m charts are also available. Near VA is measured at 40 cm or at the person’s working distance. VA is measured with print or digital charts (desk top monitor, tablets or smartphone apps)
Chart designs vary e.g. Snellen and logMAR, and various levels of contrast and simplified charts for vision screening are also available.
Charts are made up of various optotypes including letters, or symbols and tumbling Es for pre-literate people, and passages of text to assess near vision. The size of the optotypes typically range from 6/5 to 3/60, and low vision charts have larger optotypes.
If you are new to the world of Visual Acuity measurement, you may be interested in reading:
Which type of VA chart do I need? Some factors to consider
If you are experienced in measuring Visual Acuity, you may be interested in trying:
Measuring VA-not as simple as it seems? Some questions for a self-audit
Related product categories
Digital Charts
Distance Flash Cards
Distance Landolt C Flip Charts
Distance Landolt C Paper Charts
Distance Number Flip Charts
Distance Number Paper Charts
Distance Paper Charts
Distance Sloan Letter Flip Charts
Distance Sloan Letter Paper Charts
Distance Translucent Charts, LEA Symbols
Distance Tumbling E Flip Charts
Distance Tumbling E Foldable Charts
Distance Tumbling E Paper Charts
Distance Vision Motorised Drum
Illuminated Cabinet for 227mm x 355mm Charts
Near & Reading Paper Charts
Near Book
Near Card
Near Contrast Card
Near Landolt C Card
Near Number Card
Near Paper Card
Near Paper Charts
Near Preferential Looking Test Paper Chart
Near Reading Card
Near Sloan Letter Card
Near Tumbling E Card
Near Tumbling E Low Contrast, Letter Card
Puzzle
Snellen
Vision Testing Drum
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IMRES BV: Vision-Testing Chart, Snellen-Type
Vision-Testing Chart, Snellen-Type one side/illiterate E-type on other side
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IMRES BV: Vision-Testing Chart, Digital, 17″ Display
Vision-Testing Chart, Digital, 17″ Display (Diagonal), 128 charts, Multidistance Option, Remote Control, 2 x AAA battery (Z-DVC1 Cyber chart)
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KHOSLA: Vision Testing Drum
Vision Testing Drum
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KHOSLA: Near Vision Chart
Near Vision Chart
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KHOSLA: Distance Vision Chart
Distance Vision Chart
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KHOSLA: E Illiterate Distance Charts
E Illiterate Distance Charts
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KHOSLA: VA Chart Snellen + E Chart
VA Chart Snellen + E Chart
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KHOSLA: Numbers Chart
Numbers Chart
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KHOSLA: Distance Vision Drum 4 Side (K-DISTANCE VISION DRUM)
Distance Vision Drum 4 Side
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Devine Meditech: LCD Auto Chart System with remote
LCD Auto Chart System (with wireless handset)