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 |
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.

Stereoacuity depth preception test designed to rapidly test for amblyopia and strabismus in early and non-readers and non-verbal children and adults.
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.
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