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#1027-L Stereo Fly & LEA Symbols® with Glasses
are used to "red flag" possible vision problems such as amblyopia, suppression and strabismus. This is an excellent test to use with non-verbal children. Watch their faces for a startled expression when looking at the fly's 3 dimensional wings. This usually indicates depth perception is present. Comes in a folder including: House Fly, Graded Circle Test and Animal Test. Stereopsis range from 800-100 seconds of arc. |
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#1027-LEA Randot LEA Symbols® Stereo Acuity Test
Designed to rapidly test for amblyopia & strabismus in early & non-readers and non-verbal children & adults. Expanded random dot LEA test (500, 250, 125, 63 sec of arc). Graded circle test now down to12.5 sec with no monocular clues. New improved booklets has answer key on back cover and includes polarized viewers. |
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#1027 Stereo Fly & Glasses
are used to "red flag" possible vision problems such as amblyopia, suppression and strabismus. This is an excellent test to use with non-verbal children. Watch their faces for a startled expression when looking at the fly's 3 dimensional wings. This usually indicates depth perception is present. Comes in a folder including: House Fly, Graded Circle Test and Animal Test. Stereopsis range from 800-100 seconds of arc |
