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굴절교정레이저각막절제술 후 트라닐라스트의 각막혼탁 억제에 대한 펜타캠을 이용한 분석

Effects of Topical Tranilast on Corneal Haze with the PentacamⓇ after Photorefractive Keratectomy

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목적: 트라닐라스트의 굴절교정레이저각막절제술 후 발생할 수 있는 각막혼탁 억제효과를 팬타캠을 이용하여 알아보고자 한다. 대상과 방법: 굴절교정레이저각막절제술이 계획된 30명 60안을 각각 -5D 미만의 근시와 -5D 이상의 고도근시로 나누어 분석하였으며, 술 후 무작위로 배정한 한쪽 눈에만 트라닐라스트 점안액을 사용하고, 다른 쪽 눈에는 사용하지 않았다. 술 후 3개월째 Pentacam®을 이용하여 각막혼탁을 비교하였다. 결과: -5D 미만의 근시와 -5D 이상의 고도근시에서 트라닐라스트를 넣은 군과 넣지 않은 군 간의 술 전 구면 값과 난시 값은 통계적으로 유의한 차이가 없었다(p>0.05). Pentacam®을 이용한 각막혼탁도에서는 -5D 미만의 근시와 -5D 이상의 고도근시 모두 각막정점으로부터 멀어질수록 각막혼탁도는 감소하였지만(p<0.05), 트라닐라스트를 넣은 군과 대조군 간에 통계적으로 유의한 차이가 없었다(p>0.05). 결론: 트라닐라스트의 사용이 굴절교정레이저각막절제술 후 생기는 각막혼탁의 억제에 효과가 없었고, 각막혼탁을 정량적으로 평가하는 데 있어 Pentacam®을 이용하는 것이 유용하다.

Abstract

Purpose: To evaluate the inhibitory effect of tranilast on formation of corneal haze using the Pentacam® after photorefractive keratectomy(PRK). Methods: A prospective, randomized, paired eye study was performed. A total of 60 eyes from 30 patients were enrolled in thepresent study. Eyes were categorized as myopic eyes <-5 D and ≥-5 D. Patients undergoing PRK were randomized to receivetranilast in one eye and no medication in the contralateral eye. Three months postoperatively, corneal haze was measured withthe Pentacam® and compared between the 2 groups. Results: Statistical differences were not found in preoperative data in the tranilast or control groups (all p > 0.05). There was astrong decreasing density trend from the apex to the 3 mm radius in both groups (p < 0.05). However, postoperative corneal hazein the tranilast group was similar to the control group (p > 0.05). Conclusions: The use of tranilast after PRK did not inhibit corneal opacity. Additionally, Pentacam® can provide a useful objectivemeasure of corneal haze.

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