Chart(Intermediate): ESV1200™ and ESV1500™ - ETDRS 2000 Series - Sloan Letter - (26"/66cm)
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$40.00
Color
Black
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Description
These adult Sloan Letter charts are calibrated to test visual acuity at an intermediate distance of 66 cm (26"). The Sloan Letter optotypes are on proportionally spaced lines; line sizes range from 20/400 to 20/10 (6/120 to 6/3) equivalent....