Precision Vision Stereo Fly Test - SO001

• Evaluate both gross stereopsis (355 to 700 seconds of arc) and fine depth perception
• Graded circle test (800 to 40 seconds of arc)
• Animal test for children (400 to 100 seconds of arc)
• Answer key provided on back cover
• International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

Stereo depth perception tests are an effective and easy to use method of screening stereoscopic vision for all ages. They help to detect visual problems such as stereopsis, amblyopia, suppression and strabismus. Stereo depth-perception tests, such as the Stereo Fly, have proven to be an effective and easy-to-use method of screening vision for all ages. They help to identify vision problems and conduct stereopsis, amblyopia, suppression, and strabismus testing, each of which can impede a child’s development and performance. Recognized as the standard for Stereo Depth Perception testing, the Stereo Fly allows for easy administration and evaluation of both gross and fine stereo vision. This test is designed so that it is easy to administer. All items of the Stereo Fly test are manufactured with high quality materials, ensuring sharp long-lasting images. INSTRUCTIONS for the STEREOTESTS The Stereo Fly Tests provide an easily administered check of stereoscopic depth perception at any age level. Its purpose is to measure how minutely the two eyes can discern differences in the distances of objects from the observer. Other depth determinants such as size, overlapping, perspective, etc. must be excluded to demonstrate the integrity of the fusion mechanism. Stereo Optical’s Vectogram is an ideal medium for this test. Without introducing instruments or lenses or prisms, the images for the right eye and left eye may be superposed, and stereoscopic disparities introduced in graded steps.