Multi-Contrast Sloan Letter Flip Book


The test chart is also bound and includes instructions and recording forms. Each level uses traditional Sloan optotypes in an ETDRS format for an equally difficult test from beginning to end. Every level uses a different series of optotypes to help reduce any possibility of memorization. Also, each contrast sensitivity level is highly calibrated and will produce accurate results. This flip book is an excellent choice for research because of its accuracy and reliability.

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