Comparing Conventional Grid Laser Photocoagulation and Subthreshold Micropulse Laser in Diabetic Macular Edema Using OCT Angiography
The prevalence of diabetes mellitus has increased significantly in Hong Kong for the past decade [1]. Diabetic macular edema is one of the most common causes of vision loss in patients suffering from diabetes mellitus [3]. Before the introduction of anti-vascular endothelial growth factor agents, laser photocoagulation has been the mainstay treatment for patients with diabetic macular edema. There are two types of laser treatment modalities, namely focal laser, which can be applied either in a grid pattern over a region of macular edema or to selected microaneurysms, and subthreshold micropulse laser. Only one meta-analysis published in 2016 [16] had ...
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