倍频532激光治疗增殖前期糖尿病视网膜病变的疗效观察

Observation of the treatment effect of using the double frequency laser 532 to treat the pathological changes of retina due to diabetes before proliferation

目的评价倍频532半导体激光器治疗增殖前期糖尿病视网膜病变的疗效。方法利用波长 532 nm的绿激光光凝病变的视网膜及格栅样光凝黄斑区;需作全视网膜光凝的在黄斑光凝完成后进行,平均随访8个月,观察病变网膜的改善情况、黄斑水肿消退情况及光凝前后视力的变化。结果 86眼视力提高67 眼,占78．5％,不提高的17眼,占19．5％,下降的2眼,占2％。结论倍频532半导体激光对增殖前期糖尿病视网膜病变有效,对局限性黄斑水肿光凝后视力明显提高。

Objective To evaluate the treatment effect of using the double frequency Laser 532 to treat the pathological changes of retina due to diabetes before proliferation. Methods To condense the rays of the wavelength 532nm green laser on the pathologically changed retina and the case-pattern rays on the yellow spot, the full ray-condensed retina should be dealt with after the ray condensation of the yellow spot. During the following 8 months,close attention should be paid to the improvement of the pathologically changed retina, the fadeaway of the dropsy of the yellow spot and the change of eyesight after the operation. Results 67 of 86 persons were improved in their eyesight, with the percentage of 78.5 % , 17 persons（ 19.5 % ） didn＇ t improve and only 2 （2 % ） were worse. Conclusion The double frequency laser 532 is effective in treating the pathologically changed retina due to diabetes before proliferation, and has obvious effect in improving the eyesight of the persons with the limited yellow-spot dropsy through the ray condensation.