How to use the Kay Picture Test Single Crowded Book
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- Опубліковано 18 лют 2019
- This video demonstrates how to use the Kay Picture Test Single Crowded Book.
The test comprises our new, fully-researched picture optotypes that provide a reliable visual acuity measurement comparable with ETDRS. The six new picture optotypes are presented in a crowding box with a choice of four different optotypes at each acuity level.
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