الفهرس 
Introduction
Pathogenesis of primary pterygiumOnly 14 pages are availabe for public view
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Abstract
The aim of the work: is to assess the results of limbic stem cell transplantation versus conjunctival autograft in treatment of primary and recurrent pterygia. Material & Method : The study was conducted on 60 eyes of 60 subjects which were chosen from patients attending the outpatient clinic of Mansoura Ophthalmic Centre. They were categorized into the 2 groups: Primary pterygium group& Recurrent pterygium group each of these groups were classified into 15 cases which were managed with excision followed by conjunctival autograft and the other 15 were managed with excision followed by limbic stem cell transplantation. Results : The recurrence rate was found to be 10% where 6 cases recurred out of 60. The best result was in cases of primary pterygium that were treated with limbic stem cell transplantation where there was no recurrence. While the highest recurrence rate (20%) was seen in cases with recurrent pterygia that were treated with conjunctival autograft transplantation.The best corrected visual acuity had significantly improved in limbic autograft group in comparison with conjunctival autograft group regardless the type of pterygium. The decrease in mean astigmatism postoperatively was statistically significant in cases belonging to limbic autograft groups regardless the type of pterygium. While in conjunctival autograft groups, it was statistically insignificant. Conclusion : Although the number of recurrences seemed to be lowered with limbic stem cell transplantation, there was no statistically significant difference between the two techniques in decreasing the recurrence. BCVA came to be significantly higher and the mean preoperative astigmatism was significantly lowered when using limbic stem cell transplantation in comparison with conjunctival autograft.