Good-Lite Astigmatism & Vergence Slide

by: Good Lite
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$157.92

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SKU GLT00779

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Tumbling E Sloan Letter Astigmatism & Vergence Projector Slide

Projector Slide featuring Astigmatism & Vergence. Tumbling E from 20/400 to 20/200 Sloan Letters from 20/100 to 20/10 Astigmatic Clock Test Vertical Lines for Vergence from 20/40 to 20/10 Sloan Letters from 20/50 to 20/10 and Astigmatic Blocks.