A basic vision therapy tool no VT practice should be without. Better weight = Better swing!
Hard White Marsden Ball is 3″ hollow ball made of hard plastic with black letters on a 10’ cord.
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A basic vision therapy tool no VT practice should be without. Better weight = Better swing!
A basic vision therapy tool no VT practice should be without. Better weight = Better swing!
Hard White Marsden Ball is 3″ hollow ball made of hard plastic with black letters on a 10’ cord.
| Brands | Good Lite |
|---|
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).
Small Fixation Disparity Polarized Target Vectographic two-dimensional card with 2 Fixation Disparity Crosses positioned vertical to one another to facilitate the comparison of binocular performance when using a lower versus higher spatial frequency or acuity demand.
A vectographic two-dimensional Fixation Disparity Target for assessing Near Point of Fixation Disparity and Associated Vergence Measures at Near.
Set includes Fixation disparity test and adult Polarized.
This card combines a lea symbols® line test on one side and lea numbers® line test on the opposite side. Proportionally-spaced lines from sizes 20/400 to 20/10 (6/120 to 6/3) equivalent.
16 inches, 40 cm testing distance.
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