Analysis of visual acuity and macular edema in patients with diabetic retinopathy after laser treatment

Abstract

AIM: To analyze curative effect of laser treatment for diabetic retinopathy(DR).METHODS: A total of 100 patients(136 eyes)with DR who were admitted to our hospital during January 2015 to December 2016 were enrolled in the study. All patients were given 532nm laser treatment. Changes of visual acuity and the incidence of complications were statistically analyzed after treatment, and the macula central fovea retinal thickness and hemodynamic changes of affected eyes were compared before and after treatment. The effects of laser treatment were compared among patients with different types of diabetes, patients in different DR stages and patients with different glycosylated hemoglobin(HbAlc)levels. RESULTS: After treatment, the macula central fovea retinal thickness, end diastolic velocity(EDV), pulsatility index(PI)and central retinal artery(CRA), mean flow velocity(Vm)significantly decreased(Pvs ≥8% 73.0%)(PCONCLUSION: The 532nm laser treatment is effective for DR. It can significantly improve the retinal hemodynamics and visual acuity and relieve macular edema. Types of diabetes mellitus, stages of DR and blood glucose control effect may affect the effects of laser treatment.

Keywords

• diabetic retinopathy
• 532nm laser treatment
• visual acuity
• macular edema
• hemodynamics
• hemodynamics