目的：探讨改良格栅样光凝在治疗非增殖型糖尿病视网膜病变黄斑水肿中的疗效。

Objective: to investigate the therapeutic effect of modified grid laser photocoagulation (MGLP) for the treatment of macular edema associated with non - proliferative diabetic retinopathy (NPDR).

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在基线有132例（90％）无糖尿病视网膜病变和15例（10％）有轻度非增殖型视网膜病变。

At baseline, 132 of the patients(90%)had no retinopathy, and 15(10%)had mild nonproliferative diabetic retinopathy.

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