COS 24" HD Visual Acuity System.



 Standard Optotypes: Variable Display Options:
Standard Letters Incremental Size
Number Charts Character Randomization
Children's Images Horizontal / Vertical Single Line
Tumbling E Single Character Isolation
Landolt C Red / Green for All Optotypes
ETDRS Mirrored Room Configuration
Fixation Video Color Test Charts
Still Images Worth 4-dot Test
Children Videos Fixation Dot
Multi 20/20 Lines Astigmatic Dial

Snellen Ratios from 20/15 to 20/400.

Calibration Distance: 6 ft. to 26 ft.

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