TY - BOOK AU - Ayman Elsayed Gafar AU - Dalia Abdelfattah Ghalwash , AU - Mohammed Mahmoud Elsayed , TI - New trends in management of limbal stem cell deficiency/ PY - 2012/// CY - Cairo : PB - Ayman Elsayed Gafar , KW - Autologous serum KW - Cytoberatins KW - Dalton N1 - Thesis (M.Sc.) - Cairo University - Faculty of Medicine - Department of Ophthalmology; Issued also as CD N2 - An essential perquisite for clear good vision is have a smooth corneal surface epithelium supporting an intact tear film . Physiologically , a natural turnover of corneal epithelial cells occurs in which superficial cells shed from the epithelial surface and replaced by those from underneath . In turn , basal epithelial cells migrate inward from the periphery , replenishing the population of the deeper coneal epithelial cells UR - http://172.23.153.220/th.pdf ER -