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