Alterations of Retinal Pigment Epithelium–Photoreceptor Complex in Patients with Type 2 Diabetes Mellitus without Diabetic Retinopathy: A Cross-Sectional Study

Table 2

Mean thickness measurements (μm) of the RPE–photoreceptor complex, RNFL, and GCL in the foveal and paracentral areas of patients with DM and healthy controls.

Layers	Thickness (mean)		95% CI of the difference	value
	Patients with DM (μm)	Healthy controls (μm)
RNFL_F			−1.19, 0.82	0.713
RNFL_PC			−1.65, 0.54	0.319
GCL_F			−3.27, 1.47	0.454
GCL_PC			−3.10, 1.44	0.472
RPC_F			0.23, 3.65	0.027
RPC_PC			0.79, 2.91	0.001

Abbreviations: F: foveal area; PC: paracentral area; RPC: RPE–photoreceptor complex; CI: confidence interval; RNFL: retinal nerve fiber layer; GCL: ganglion cell layer; RPE: retinal pigment epithelium. shows a significant difference.