Comparison Of Various Visual And Stereocuity Tests In A Developmentally Disabled Population.

The Saginaw Valley Special Needs Vision Clinic is a nonprofit organization housed at the Millet Learning Center in Bridgeport, Michigan. The Clinic provides services for individuals with special needs, including those with physical, mental, emotional, and sensory disorders.
Many of these patients cannot identify standard Sloan letters and therefore reliance upon other acuity symbols is necessary for visual acuity measurements. The purpose of my study is to determine how well these illiterate symbol acuities correlate with Sloan letter acuities. A battery of acuity tests was administered to fifteen TMI (Trainably Mentally Impaired) young adults, ages sixteen to twenty-five, all of whom were able to identify Sloan letters. Stereoacuity tests were also compared in an attempt to assess their reliability and consistancy.