Study materials
PDR, NPDR, Diabetes
DIABETES
a) The baseline data of 2677 patients were collected from the Guangdong Shaoguan Diabetes Cohort Study conducted by Zhongshan Ophthalmic Center (ZOC), Sun Yat-sen University in Guangzhou, China in 2019.b) All patients were diagnosed with T2DM.c) All patients underwent fundus photography and OCT examinations, and experienced ophthalmologists diagnosed and verified DR and DME. Patients with severe NPDR, PDR, and/or DME were defined as having VTDR.