Vision Screening Book Stereo Optical Face Distance Depth Perception Test

Features

• Recognized as the standard for stereo depth perception testing
• Test allows easy evaluation of both gross and fine stereo vision
• Test includes: House fly test for gross stereopsis (3500 to 40 seconds of arc), graded circle test (800 to 40 seconds of arc), animal testing for young children (400 to 100 seconds of arc), 1 pair of standard 3-D viewers, and answer key on back cover
• This test is produced by: Stereo Optical Company, Inc. Randot is a registered trademark of Stereo Optical Company, Inc