Although often trivialized, disorders of the eye affect a majority of the global population of all ages. There are an estimated 1.26 million blind children worldwide, of which approximately 33% live in Africa [1-3]. Each year, an estimated half a million children become blind, of whom 60% die in childhood. Notable among the causes of blindness and visual impairment among children are vitamin A ...

AIMS To determine the causes of severe visual impairment and blindness in children in schools for the blind in Ethiopia, to aid in planning for the prevention and management of avoidable causes. METHODS Children attending three schools for the blind in Ethiopia were examined during April and May 2001 using the standard WHO/PBL eye examination record for children with blindness and low vision ...

PURPOSE To identify the causes of blindness and severe visual impairment (BL/SVI) in children attending schools for the blind in Sri Lanka, and to provide optical devices and ophthalmic treatment where indicated. METHODS Two hundred and six children under 16 years from 13 schools for the blind in Sri Lanka were examined by a team of ophthalmologists and optometrists. Data were entered in the ...

Aims: To determine the causes of severe visual impairment and blindness in children in schools for the blind in Ethiopia, to aid in planning for the prevention and management of avoidable causes. Methods: Children attending three schools for the blind in Ethiopia were examined during April and May 2001 using the standard WHO/PBL eye examination record for children with blindness and low vision ...

Mental rotation tasks have been used to probe the mental imagery both of sighted and of visually impaired people. People who have been blind since birth display a response pattern which is qualitatively similar to that of sighted people but tend to respond more slowly or with a higher error rate. It has been suggested that visually impaired people code the stimulus and its (or their own) motion...