Examination and Clinical Significance of Retinal Thickness in Patients with Type 2 Diabetes Mellitus

Objective To investigate the alterations of central macular retinal thickness in patients with type 2 diabetic mellitus.Methods Retinal thickness were measured with optical coherence tomography(OCT)in 36 patients with type 2 diabetes mellitus and 16 normal persons(normal control group),at the same time,retina of all patients were examined with ophtalmoscope.According to the degree of retinopathy,36 diabetic patients were divided into three groups: nomal retinopathy group(NR group)?Background retinopathy group(BR group)?proliferative retinopathy group(PR group).Results The central macular thickness of normal control group was(168±18)μm,The central macular thickness of diabetic patients was much higher than that of normal persons(P0.05 or P0.01),The central macular thickness of NR was(205±35)μm,of BR was(277±69)μm,of PR was(354±33)μm.Conclusion The central macular thickness in patients with type 2 diabetes mellitus increased significantly with increase of the degree of retinopathy.