Flipper set with acrylic stand. Each color coded flipper is marked with diopter power on handles. ALL GLASS OPTICS – no distortions and no yellowing.
Set with 6 flippers, plus and minus each of 0.25, 0.50, 0.75, 1.00, 1.50, 2.00.
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Flipper set with acrylic stand. Each color coded flipper is marked with diopter power on handles. ALL GLASS OPTICS – no distortions and no yellowing.
Flipper set with acrylic stand. Each color coded flipper is marked with diopter power on handles. ALL GLASS OPTICS – no distortions and no yellowing.
Set with 6 flippers, plus and minus each of 0.25, 0.50, 0.75, 1.00, 1.50, 2.00.
| Brands | Good Lite |
|---|
| Testing Distance | 0.25, 0.50, 0.75, 1.00, 1.50, 2.00. |
| Material | acrylic stand |
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.
This double-sided near vision card combines proportionally-spaced lines on one and 50% spaced rectangle (Massachusetts Visual Acuity Test Format) on the other. Attached 16-inch (40 cm) measuring cord ensures proper screening distance. Includes flash cards and instructions.8 in x 10 in (20.3 cm x 25.4 cm).
16-inch, 40 cm testing distance.
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.
The LEA 3-D Puzzle is designed for supporting the development of the concept of “same”, first with colors, then with black & white concrete forms that are prerequisites for the measurement of recognition acuity with the LEA SYMBOLS® tests at an early age.
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