Association between Visual Acuity and Retinal Layer Metrics in Diabetics with and without Macular Edema

Table 1

Study population and ocular characteristics.

	Total sample size = 149
Population characteristics
Age, mean (SD), years	56.0 (11.8)
Female sex, number (%)	87 (58.4%)
Race/ethnicity, number (%)
White	25 (16.8%)
African American	77 (51.7%)
Hispanic or Latino	42 (28.2%)
Asian	5 (3.4%)
DM type, number (%)
1	12 (8.1%)
2	137 (91.9%)
DM duration, mean (SD), years	16.3 (10.1)
Glycated hemoglobin level, mean (SD), %	7.9 (1.7)
Ocular characteristics
Study eye, number (%)
Right	96 (64%)
Left	53 (36%)
Spherical equivalent refractive error, mean (SD), D	−0.66 (1.74)
Visual acuity, mean (SD), log MAR units	0.04 (0.13)
Diabetic retinopathy stage, number (%)
No DR	51 (34%)
NPDR	59 (40%)
PDR	39 (27%)
Presence of DME, number (%)	28 (18.8%)
Central subfield thickness, mean (SD), μm	283 (56)

DM = diabetes mellitus; DR = diabetic retinopathy; PDR = proliferative diabetic retinopathy; NPDR = nonproliferative diabetic retinopathy; DME = diabetic macular edema; SD = standard deviation.