Red and green sheets used for anti suppression. Full-sized sheets can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
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Red and green sheets used for anti suppression. Full-sized sheets can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
Red and green sheets used for anti suppression. Full-sized sheets can be used for reading and other activities in books or on a computer screen.
Measures 8.5 x 11 inches.
| Brands | Good Lite |
|---|
| Measures | 8.5 x 11 inches |
This assessment is designed for amblyopia testing or screening. This near vision chart has 50% spaced rectangle (Massachusetts Visual Acuity Test format) with line sizes from 20/400 to 20/16 (6/120 to 6/4.8) equivalent.
16 inches, 40 cm testing distance.
Sloan Letter charts calibrated to test visual acuity at an intermediate distance of 66 cm (26 in.).
This chart can either be wall mounted or used in an ESV 1200 , ESV 1500 , or a Model A illuminated cabinet.
The Teller Acuity Cards is a test of grating acuity for infants, young children and individuals with disabilities utilizing a preferential looking technique. This test has an extensive evidence base in normative and clinical studies that provide a strong foundation for applications in ophthalmology, optometry, and developmental practice. The test is cited more often than any similar product in the health information compiled by The National Library of Medicine.
Test for quick measurement of low Contrast visual acuity at 25%, 10%, 5%, 2.5%, and 1.25% Contrast by measuring the distance where the symbols are seen. 10M symbols correspond to visual acuity 0.10 at 1 m, 0.05 at 0.5 m and 0.3 at 3 m. VA values are thus easy to calculate. Test includes a table for conversion to Snellen equivalent VA values, a response keys and instructions. 6 pages, 3.25″ x 9″ (8.25 cm x 22.9 cm).
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