摘要
目的 观察532nm激光光凝治疗视网膜大动脉瘤的临床疗效。方法 依据荧光眼底血管造影检查确诊视网膜大动脉瘤22例22只眼,应用532nm激光,以直径100~150μm小光斑直接对瘤体光凝,对瘤体周围视网膜采用直径200~400μm光斑进行光凝,覆盖瘤体周围。曝光时间0.1~0.5s,功率0.3~0.9W,激光反应级别2~3级对光凝治疗效果进行随访观察。结果 随访5~24个月,视力增加者18只眼(82%),其中增加2行以上者8只眼;视力不增加者4只眼。随访期荧光眼底血管造影检查12只眼,见瘤体萎缩、出血、渗出逐渐吸收,视力不增加者合并有黄斑出血、视网膜前或下出血及屈光间质混浊。结论 532nm激光直接对视网膜大动脉瘤瘤体光凝,促瘤体闭塞以减少反复出血,缩短病程,有利于病情的恢复。
Objective To observe the therapeutic effect of 532 nm laser on large retinal aneurysm.
Methods Twenty two patients (22 eyes) with large retinal aneurysm were proved by fundus fluorescein angiography ( FFA ) and treated by 532 nm laser photocoagulator with 100-150μm photocoagulation areas of aneurysm directly, and 200- 400 μm photocoagulation areas around the aneurysm with irradiation time 0. 1- 0. 5 s, power 0. 3- 0. 9 W, and 2-3 grades of spot reaction. Follow up time was 5- 24 months after photocoagulation, and FFA was performed on 12 eyes.
Results In 18 (82%) eyes central vision was increased after photocoagulation. At follow-up time, the neoplasia body was atrophied and the bleeding and exudation were absorbed gradually. Conclusions The therapeutic photocoagulation using 532 nm laser is a better method for emphraxis of neoplasia body and shortening the cowrse of disease.
出处
《中国激光医学杂志》
CAS
CSCD
2006年第2期112-114,共3页
Chinese Journal of Laser Medicine & Surgery
关键词
激光
视网膜大动脉瘤
光凝
Lasers
Large retinal aneurysm
Photocoagulation