Stereo Fly Test

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The Stereo Fly Test is a stereopsis assessment tool that measures both gross (355–700 arcseconds) and fine (40–800 arcseconds) depth perception. Featuring a child-friendly animal theme and graded circle test, it operates at a 1-foot distance and comes neatly packed in a box for clinical use.

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Description Specification

The Stereo Fly Test is a widely used ophthalmic diagnostic tool designed to measure stereopsis, or depth perception — the ability of both eyes to work together to perceive three-dimensional images. This test utilizes a dual-scale evaluation system, measuring both gross stereopsis (355–700 arcseconds) and fine stereopsis (40–800 arcseconds), allowing practitioners to assess a full range of binocular vision performance. It is especially useful for identifying abnormalities such as strabismus, amblyopia, or suppression in patients of all ages.Developed with a child-friendly animal theme, the Stereo Fly Test makes vision evaluation more engaging and less intimidating for young patients. The test presents a large 3D fly image to measure gross depth perception and includes an animal series and graded circle test for evaluating finer stereo acuity levels. This progressive structure enables clinicians to test both basic and advanced levels of depth sensitivity, helping to accurately determine binocular visual function.

Compact and easy to administer, the Stereo Fly Test comes neatly packed in a protective box for safe storage and transport. It operates at a testing distance of approximately 1 foot (30 cm) and is suitable for both clinical and educational settings. With its combination of precision, ease of use, and patient-friendly design, the Stereo Fly Test remains a trusted standard for assessing depth perception in ophthalmology and optometry practices.

Specifications of Stereo Fly Test

Shipping Weight	1 kg
Shipping Dimensions	20 × 10 × 20 cm
Type	Stereopsis / Depth Perception Test
Measurement Range	40–800 Arcseconds (Fine), 355–700 Arcseconds (Gross)
Testing Distance	1 Foot (Approx. 30 cm)
Design	Animal Theme with Graded Circle Test
Operation	Manual, Visual Diagnostic Test
Application	Assessment of Binocular Vision & Depth Perception