الفهرس 
Anatomy of the ConjunctivaOnly 14 pages are availabe for public view
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Abstract
The aim of the work: To assess the effectiveness of new techniques in treatment of pterygium and in prevention of recurrence. Material & Method : Review of literature about causes and prevention of recurrent pterygium. Results : Recurrent pterygium is a common ocular surface disorder that is often resistant to conventional surgeries, as it is usually associated with subconjunctival fibrosis, which sometimes results in restriction of ocular movement or adhesions between the bulber and palbepral conjunctiva (symblepharon). Conclusion : The idea of fixing natural tissue to hinder the regrowth of pterygia after excision challenged to think in taking use of the conjunctiva as a graft. This was applied as conjunctival free graft which recorded relative success rate as 6.5% recurrence rate with primary pterygium and 8% with recurrent ones. Conjunctival autograft, with satisfying success rates particularly in association with adjuvant drugs as MitomycinC. Despite being technically somehow is more difficult than other procedures, but still has best success rates and less recurrent rates among other types of conjunctival grafts. More successful trials were obtained with the use of amniotic membrane graft that recorded recurrence rates of about 3.8% with primary pterygium and less than 6% with recurrent pterygium and these are generally considered the best results obtained from grafting procedures. Adjunctive therapies as MitomycinC or postoperative Beta irradiation help a lot in reducing the recurrent rates significantly especially in association with graft procedures, but their side effects on the eye should be taken in consideration.