1. 1. Nikolopoulos TP, Lioumi D, Stamataki S, O'Donoghue GM. Evidence-based overview of ophthalmic disorders in deaf children: a literature update. Otol Neurotol 2006; 27 (2 Suppl 1): S1-24, discussion.
2. 2. Hanioglu-Kargi S, Koksal M, Tomac S, Ugurba SH, Alpay A. Ophthalmologic abnormalities in children from a Turkish school for the deaf. Turk j Pediatr 2003; 45(1):39-42.
3. Visual screening in a school for hearing impaired children;Murdoch;Child Care Health Dev,1990
4. 4. Gilbert C., Muhit M. Twenty years of childhood blindness: what have we learnt? Comm. Eye Health J. 01 September 2008; 21(67); 46-47. Available from http://www.cehjournal.org/article/twenty-years-of-childhood-blindness-what-have-we-learnt.
5. 5. K.C Pant. A Handbook for Parents of Children with Disabilities.2002 Feb12.p 2.