Masran Long, Visual impairment amongst the adult Malay population in a rural area in the district of Kuala Selangor, Selangor / by Masran bin Long - 41 p. : ill. ; 30 cm. Thesis (Degree of Master of Surgery (Ophthalmology), Universiti Kebangsaan Malaysia, 1996. References : p.34-37 Subjects--Topical Terms: Vision, Subnormal--Selangor--Case studies.Blindness--Selangor--Case studies.INDAMET.