開放隅角緑内障に対するargon laser trabeculoplastyの統計的検討

Review of argon laser trabeculoplasty for open angle glaucoma

　信州大学医学部眼科にて施行されたargon laser trabeculoplasty （ALT）39例48眼につき，retrospectiveに検討し，次の結果を得た．

　観察期間は3週間から28カ月，平均11.4カ月であった．照射範囲は隅角1／3周とした．

（1）第1回照射にて，28眼（58.3％）が眼圧コントロール良好となり，最終照射後には34眼（70.8％）が良好であった．

（2）60歳以上の症例は，60歳未満の症例に比して，有意に良好な眼圧コントロールを得た．

（3）術前眼圧が25mmHg未満の症例は有意に良好な眼圧コントロールを得た．

（4） ALT後1週間の眼圧が20mmHg以下の症例は有意に良好な成績を得た．

I evaluated a consecutive series of 48 eyes (39 patients) with open-angle glaucoma treated by argon laser trabeculoplasty. As a general rule, laser was applied along the trabecular meshwork subtending 120°, with the mean number of laser spots of 34 per eye. The follow-up averaged 11.4 months.

The intraocular pressure was brought under control in 28 eyes (58%) after one treatment session and in 71% after three sessions. Argon laser trabeculoplasty was significantly more effective in patients over 60 years of age than in younger age group. A better control was chieved by laser trabeculoplasty in eyes with pretreat-ment pressure level of 25 mmHg or less. Whenever the post-laser pressure was 20 mmHg or less one week after treatment, the beneficial effect lasted throughout the period of observation.

Rinsho Ganka (Jpn J Clin Ophthalmol) 40(7) : 831-835,1986