| Description | Designed specifically for use with children ages 3 and up. The patient is asked to distinguish between a "Raised E" and a non stereo target. |
The Stereo Butterfly tests and evaluates random dot stereo depth perception for both gross stereopsis (2500 to 1200 seconds of arc) and fine depth perception. The figures present on the test cannot be identified without viewing glasses.
Features:
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Test and Evaluate Stereo Depth Perception from Random Dot Backgrounds (500 and 250 sec of arc).
The Test Includes: - Graded Circle Test (400 to 20 sec of arc)
- An Animal Test for Children (400 to 100 sec of arc)
- 1 Pair of Standard 3-D Viewers
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Tests stereopsis from 800 to 40 seconds of arc on patients as young as 2 years of age in a matching game sequence from left to right.
Randot Preschool includes 3 test booklets:- Book #1: 200 and 100 sec of arc
- Book #2: 60 and 40 sec of arc
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Test and Evaluate Stereo Depth Perception from Random Dot Backgrounds (500 and 250 sec of arc).
The Test Includes: - Graded Circle Test (400 to 20 sec of arc)
- An Animal Test for Children (400 to 100 sec of arc)
- 1 Pair of Standard 3-D Viewers
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