COMLICATIONS OF PROPHYLACTIC ND: YAG LASER PERIPHERAL IRIDOCTOMY FOR PRIMARY ANGLE CLOSURE GLAUCOMA
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Abstract
Objectives: To evaluate the complications of prophylactic Nd: YAG laser peripheral iridotomy for primary angle closure glaucoma. Patients and Methods: 124 eligible eyes were recruited into the study from 3 centers Vietnam National Eye Hospital, Ha Dong Eye Hospital and Eye department of 103 Military Hospital from 1/2018 to 11/2019. Results: All of 124 eyes achieved good results with 100% IOP control after 1 year of follow-up. However, there was a few complications. Hyphema occurred in 22 eyes (17.7%) mainly grade 1 (18/22 eyes) more commonly when laser was performed at the distal peripheral position (77.3%). Peripheral corneal burns occurred in 14 eyes (11.2%), of which 10 eyes with 1 shot, 4 eyes with 2 shots, more often in the shallow anterior chamber (ACD <2.5mm) (85.7)%), and at the position close to the base of the iris (92.8%). 24 hours after the procedure, IOP was 20.07±3.56 (16-24mmHg), increased on average of 4.68±2.41 (3-7mmHg). IOP increase was more important in the group of eyes with thickened iris (72.7%) Anterior uveitis occurred in 24/124 eyes (19.35%), at mild level Tyndall (+), completely improved after 3.47± 1.36 (3-5 days), more on eyes with thickened iris pigment (75%). Obstruction of the peripheral iridotomy occurred in 17/124 eyes (13.7%), more in the group of eyes with thick iris (76.5%). and in small iridotomy (< 150µm) (100%). Conclusion: Nd: YAG laser peripheral iridectomy is quite safe, although there is a certain rate of complications, which were mild and can be easily treated without affect on the final result.
Article Details
Keywords
ACAG, argon laser peripheral iridectomy, complications
References
2. Đỗ Tấn, Nguyễn Văn Cường. Biến chứng của phẫu thuật cắt mống mắt chu biên kết hợp laser tạo hình mống mắt chu biên trong điều trị glôcôm góc đóng cơn cấp không cắt cơn không kèm theo đục thể thủy tinh. Tạp chí Y học Việt Nam, 504: 237-243, 2021
3. Beckman H, Barraco R, Sugar S, et al. Laseriridectomies. Am J Ophthalmol. 1971;72:393.
4. Pollock IP. Use of argon laser energy to produce iridotomies. Trans Am Ophthalmol Soc. 1979;77:674.
5. Taniguchi T, Rho SH, Gotoh Y, et al. Intraocular pressure rise following Q-switched neodymium:YAG laser iridotomy. Ophthalmic Laser Ther. 1987;2:99.
6. Robin AL. Medical management of acute post-operative intraocular pressure rises associated with anterior segment ophthalmic laser surgery. Int Ophthalmol.1990;30:102.
7. RadhakrishnanS,Chen P, Junk AK, et al. Laser peripheral iridotomy in primary angle closure: a report by the American Academy of Ophthalmology. Ophthalmology. 2018;125:1110. symptoms following laser peripheral iridotomy. J Glaucoma. 2005;14:364.
8. Lai JS, Tham CC, Chua JK, et al. Laser peripheral iridoplasty as initial treatment of acute attack of primary angle-closure: a long-term follow-up study. J
9. Go FJ, Kitazawa Y. Complications of peripheral iridectomy in primary angle-closure glaucoma. Jpn JOphthalmol. 1981;25:222