RESUMEN
Objective To investigate the effects of krypton laser photocoagulation for diabetic macular edema(DMO).Design Retrospective cases series.Participants 58 patients(110 eyes)with DMO.Methods Average 18.9 months follow-up was performed af- ter grid pattern and/or focal laser photocoagulation in patients with DMO.Examination of visual acuity,ophthalmoscope or color fundus photography were performed at follow-up.Fluorescein angiography(FFA)and optical coherence tomography(OCT)were performed in some patients.Main Outcome Measures The changes of DMO and visual acuity.Results In 110 eyes of all patients with DMO,there was a marked reduction or disappearance of macular edema(that is satisfactory for laser therapy)in 83.6%(92 eyes),verified with FFA or/and OCT.Unsatisfactory for laser therapy was only in 16.4%(18 eyes).Visual acuity improved and unchanged in 78.2%(86 eyes), decreased in 21.8%(24 eyes).Conclusions Krypton laser grid pattern or/and focal photocoagulation is an effective and safe first-line therapy techniques for DMO.But the result is affected by many factors.