The Randot® Stereo Test tests stereopsis from 800 to 40 seconds of arc on patients as young as two years of age.
 
This test is designed as a matching game in which the patient matches the pictures on the left side with those on the right. To eliminate guessing, figures cannot be seen without viewing glasses.
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Tests and evaluates stereo depth perception for both gross stereopsis evaluation (500 & 250 seconds of arc) using six geometric forms from random dot backgrounds
Graded circle test (400 to 20 seconds of arc)