نتایج جستجو برای: childhood blindness
تعداد نتایج: 176247 فیلتر نتایج به سال:
OBJECTIVES To investigate the importance of vitamin A deficiency as a cause of childhood blindness and severe visual impairment (SVI) in India. DESIGN AND SETTING Cross sectional survey of children with visual acuity less than 6/60 in the better eye (SVI/blindness), attending 22 schools for the blind in nine states of India. MAIN OUTCOME MEASURE Proportion of children with blindness or SVI ...
BACKGROUND The impact of impaired vision on cognitive and psychosocial outcomes among long-term survivors of childhood low-grade gliomas has not been investigated previously but could inform therapeutic decision making. METHODS Data from the Childhood Cancer Survivor Study were used to investigate psychological outcomes (measures of cognitive/emotional function) and socioeconomic outcomes (ed...
What is trachoma? How many people are affected by trachoma? Trachoma is one of the major blinding diseases of the world. It is the most common infectious cause of blindness. Trachoma is caused by a recurrent, chronic eye infection. The organism involved is Chlamydia trachomatis. Episodes of infection usually begin in childhood, while blindness from corneal scarring occurs after repeated infecti...
OBJECTIVE To identify the causes of blindness in children attending a school for the blind in Hong Kong. DESIGN Cross-sectional observational study. SETTING School for blind children in Hong Kong. PARTICIPANTS Eighty-two blind students at the Ebenezer School and Home for the Visually Impaired were examined between December 1998 and August 1999. MAIN OUTCOME MEASURES Demographic data wer...
purpose: to determine the anatomical sites and causes of severe visual impairment (svi) and blindness in children attending a school for the blind in ahvaz. methods: in this case series study, all 51 students of the only school for the blind in ahvaz were examined by two ophthalmologists. blindness and svi were defined according to the world health organization (who) criteria as visual acuity l...
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