Ahmed Valve Implantation Using Scleral Tunneling.

Choi, Moon Jeong; Kim, Hwang Ki; Sohn, Yong Ho

Original Article

Journal of the Korean Ophthalmological Society 2004;45(5):763-769.
Published online May 1, 2004.

Ahmed Valve Implantation Using Scleral Tunneling.

Moon Jeong Choi, Hwang Ki Kim, Yong Ho Sohn

¹Department of Ophthalmology, Kim's Eye Hospital, Myung Gok Eye Research Institute, #156 Youngdeungpo-dong 4ga, Youngdeungpo-gu, Seoul, Korea. yhsohn@konyang.ac.kr
²Myung Gok Eye Research Institute, Korea.

공막 터널을 이용한 Ahmed Valve 삽입술의 임상성적

최문정 ( Choe Mun Jeong ) , 김황기 ( Kim Hwang Gi ) , 손용호 ( Son Yong Ho )

Abstract

PURPOSE
To assess the usefulness of Ahmed valve implantation using scleral tunneling. METHODS: Thirty-four eyes of 34 patients with refractory glaucoma who had not responded to medical treatment nor previous glaucoma surgery was given Ahmed valve implantation using scleral tunneling and were enrolled in the study with a minimum follow-up of six months. RESULTS: The mean follow-up period was 7.7 +/- 2.8 months (6~24 months). The mean preoperative IOP was 47.6 +/- 6.9 (25~70) mmHg and the mean postoperative IOP at six months was 18.7 +/- 9.8 (4~31) mmHg. The postoperative success rate was 73.5% and 73.3% at six and eighteen months, respectively, and was not affected by sex, preoperative diagnosis, or preoperative IOP. The postoperative complications were hyphema (4 eyes), choroidal detachment (3 eyes), and immediate hypotony (3 eyes). CONCLUSIONS: Ahmed valve implantation using scleral tunneling is useful, especially when patch graft is not available. The success rate was comparable with other traditional methods such as patch graft and scleral flap.

Key Words: Ahmed valve;Scleral tunnel