Background And Objective: To evaluate retinal layer changes in patients with type 2 diabetes, microalbuminuria, and no diabetic retinopathy, and to investigate its possible relationship with age, gender, diabetes duration, urinary albumin excretion (UAE), glycosylated hemoglobin, and hypertension.

Patients And Methods: A prospective, cross-sectional study was performed in 60 patients divided into three groups: diabetic patients with normal UAE, diabetic patients with microalbuminuria, and controls. Retinal thickness was evaluated by Early Treatment Diabetic Retinopathy Study grid using spectral-domain optical coherence tomography.

Results: The average and sectoral macular thicknesses of the ganglion cell layer (GCL) were significantly thinner in the microalbuminuria group compared to normal UAE group and controls (P < .005). UAE was the only factor related to this reduction in a multiple linear regression analysis.

Conclusions: The GCL thickness was reduced in eyes in patients with type 2 diabetes and microalbuminuria before clinical signs of diabetic retinopathy. Inner retinal neurodegeneration was independently associated with albuminuria. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:e36-e43.].

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http://dx.doi.org/10.3928/23258160-20180907-05DOI Listing

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