An extensive survey of the literature examines five major etiologies - prenatal rubella, premature birth, complications of Rh factor, meningitis, and genetics - in terms of their relevance to deafness and other disabilities. Following this survey, results of a study of 1,468 deaf children to determine causes of secondary handicaps in deaf children…

To investigate causes of blindness in childhood, 776 children (infancy to 20 years old) in special schools were seen in 1963. Examinations, parent questionnaires, and correspondence with health personnel were used to obtain etiological data. Causes of blindness mainly of genetic determination described are choroido-retinal degenerations,…