Objective To investigate the clinical significance of homocysteine(Hcy)and glycated hemoglobin(Hb A1c)in patients with diabetic retinopathy.Methods From March2013 to February 2015,a total of 168 patients with diabetes from Beijing Jishuitern Hospital were divided into diabetic retinopathy group(76 cases,32 male,44 female,average age 62.97±12.46)and non-diabetic ret-