The comparison of Orthorater vision tester and Snellen chart far visual acuity results for 261 National Technical Institute for the Deaf (NTID) students. Results indicated that a rear illuminated Snellen chart is an acceptable alternative to the Orthorater for screening postsecondary, hearing impaired students' far visual acuity. (Author)

Two groups of deaf college students, including 104 deaf from congenital rubella syndrome (CRS) and 138 deaf from other reasons, received complete audiometric assessments and ophthalmological examinations. Degree of hearing loss did not differ between groups. However, 7 visual problems were found to be more prevalent with the CRS population.…

Describes a corrective method of color adaptation designed to allow most, if not all, individuals to participate in the learning process as well as social and work-related environments. Provides a concise summation of facts and theories concerning color deficiency. Includes anatomical drawings, graphs, and statistical data. (MJP)