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Includes isolating mask, response key, training cards, and instructions.
Good-Lite LEA Symbols Single Symbol Book
The LEA Symbols Single Symbol Book was created for testing children and adults who have difficulties in perception of symbols in lines. The visual acuity values measured with single symbols are often several lines better than the line acuity values in people with impaired vision and therefore overestimate the quality of visual functioning.
- Single optotype line sizes from 20/200 to 20/8 (6/60 to 6/2.4) equivalent, 0.10 to 2.50.
- 13 offset pages for easy flipping.
- Testing distance: 10 feet.
|Type of product||Vision Assessment Book|
|Minimum Shipping latency||3|