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First Author: H.Kim SOUTH KOREA
Co Author(s): S. Gang
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To compare the long term clinical outcome of limbal conjunctival autograft versus amniotic membrane transplantation in surgically treated pterygium patients.
Department of Ophthalmology, Catholic University of Daegu, Daegu, Korea
116 cases of pterygium in patients older than 50 years were surgically excised and received either limbal conjunctival autograft or amniotic membrane transplantation. Mean follow-up period was 48 months. All patients were examined for recurrence, which was graded from G0 to G3, and complications such as delayed epithelial wound healing and granuloma formation.
In limbal conjunctival autograft group, 52 out of 60 cases showed no recurrence(grade 0), and 5 cases of grade 1 recurrence and 3 cases of grade 2 were observed. On the contrary, 43 out of 56 cases in amniotic membrane transplantation group showed no recurrence, and 7 cases of grade 2 recurrence and 6 cases of grade 3 recurrence were observed. Conjunctival granuloma formation was occurred in 4 cases in amniotic membrane transplantation group and none in limbal conjunctival autograft group. Epithelial wound healing is not delayed in both group.
Both limbal conjunctival autograft and amniotic membrane transplantation can be safe and effective adjunctive treatments for primary pterygium. However, limbal conjunctival autograft has a lower recurrence rate than amniotic membrane transplantation for long term follow up period. Limbal conjunctival autograft appears to be a more effective technique to reduce the recurrence after pterygium excision.