الفهرس 
INTRODUCTION AND AIM OF THE WORKOnly 14 pages are availabe for public view
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Abstract
Group III was treated by excision of the pterygium with bare sclera technique together with lamellar corneal autografting. The donor site for the graft was chosen astriding the axis of maximum corneal steepness (power) as shown by the computerized videokeratoscopy done preoperatively. The aim was to decrease the astigmatism present preoperatively, consequently, improving the visual outcome. No intraoperative complications were encounteredamong all cases in the study. Postoperative follow up for all cases ranged from 6-34 months with a mean follow up of 16.3 month. All the data obtained were registered and statistically analysed. Results obtained, were expressed regarding three main items; . recurrence, postoperative complications and visual outcome. Regardless the surgical technique used, the recurrence rate was found to be 11.7% where seven cases recurred’ among the sixty cases of the study. No significant relation was found between the recurrence and either age, sex or occupation of the patient. Cases treated by autogenous lamellar keratoplasty showed a lower incidence of recurrence (50/0) as compared to cases treated by conjunctival autografting (10%). Both techniques showed a .significant lower incidence of recurrence than that found by bare ’sclera excision with intraoperative topical mitomycin -C (20%). Time for appearance of recurrence was delayed up to 7.5 months after autogenous lamellar keratoplasty in relation to the earlier appearance of recurrence after conjunctival autografting technique (6 months). Cases treated with conjunctival autografting technique showed the least incidence of postoperative complications (15%).