Abstract
Objective To investigate the prevalence of diabetic macular edema (DME) in Huizhou city and to explore the relationship of DME with the degrees of diabetic retinopathy (DR) and visual loss and the course of diabetes mellitus (DM). Methods Population samples in Huizhou were randomly selected to survey with questionnaires for DM screening. The patients then received vision tests, +90D front- position eyeground examination under a slit-lamp microscope, fundus photography, and fluorescence fundus an-giography (FFA) for DR and DME. Results Of 645 with DM, 262 developed DR and 92 occurred DME. The incidence of DME was 0.91% in Huizhou population, 1.43% in patients with DM, and 35.1% in the diabetic patients with DR. In DME 38.20% was mild, 31.46% was moderate, and 30.33% was severe. DME worsened with the increasing degree of DR (r= 0.945, P= 0.035). Visual loss was significantly correlated with the degree of DME (r= 0.972, P= 0.005). The grading of DME was markedly associated with the disease course of DM (r= 0.954, P= 0.008). Conclusions DME leads to severe vision impairment in diabetic patients. The patients with DME should be screened and treated earlier to reduce the incidence of DR-induced blindness. The degree of DME is markedly related with the stages of DR, visual loss, and course of diabetes. Key words: Diabetic macular edema; Diabetic retinopathy; Diabetes mellitus
Published Version
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