Introduction :
Pterygium, a wing‐shaped encroachment of the cornea by the conjunctiva, Conjunctival limbal autograft with stem cell (CLAU) or amniotic membrane transplantation (AMT) has been widely adopted in the management of pterygium.

Purpose:
To compare the efficacy and the complications of conjunctival limbal autograft (CLAU) with mitomycin C 0.2 % and amniotic membrane transplantation (AMT) with mitomycin C 0.2 % for treatment of recurrent pterygium
Subject and methods:
80 eyes of 60 patients clinically diagnosed with recurrent pterygium were divided into two groups , group A included 40 eyes underwent pterygium excision and MMC 0.2% with CLAU , group B included 40 eyes underwent pterygium excision and MMC 0.2% with AMT . Recurrence was defined as fibrovascular tissue extension of more than one mm onto the cornea in the area of previously excised pterygium. Mean follow up period 8±1 month . Recurrence was compared in each group by using ӽ2 test
Results:
No major postoperative complications occurred during 6-9 months of follow-up . In CLAU group (A)only 5 eyes of recurrence occur(12.5%)after 7 months of follow up . Recurrence occur in 12 eyes (30%)in AMT group (B) after 6 months ( P value =0.043, ӽ2 test).The operated site was look like the normal adjacent site in 77%of the non recurrence group A versus 10% in group B

Conclusion:
CLAU with MMC is more effective than AMT with MMC for treatment of recurrent pterygium and the final cosmetic appearance is more acceptable in CLAU group than AMT group B .