Table 1: Demographic and clinical characteristics of the study population.

Parameters Controls Patients with diabetes Patients without DR Patients with NPDR
Number of cases (n) 60 60 30 30
Age (mean ± SD) 58.77 ± 8.99 62.01 ± 11.26 59.40 ± 11.63 64.63 ± 10.41
Gender (M:F) 25:35 34:26 14:16 20:10
IOP, mmHg 15.77 ± 2.68 15.65 ± 2.61 15.77 ± 2.44 15.52 ± 2.81
BCVA 0.853 ± 0.223 0.896 ± 0.191 0.938 ± 0.15 0.852 ± 0.22
HbA1c (%) - 8.22 ± 1.76 8.19 ± 2.10 8.24 ± 1.38
Duration of diabetes (years)
0-10
11-20
> 20

-
-
-

37 (61.7%)
15 (25%)
8 (13.3%)

27 (90%)
2 (6.7%)
1 (3.3%)

10 (33.3%)
13 (43.3%)
7 (23.3%)
Hypertension, n (%) 19 (32%) 41 (68%) 19 (63%) 22 (73%)
Duration of hypertension(years) 11.36 ± 10.47 11.46 ± 9.02 10.21 ± 9.59 12.54 ± 8.57
Grade of hypertensive retinopathy
Grade 1
Grade 2

5 (8.3%)
1 (1.7%)

14 (23.3%)
8 (13.3%)

8 (26.7%)
3 (10%)

6 (20%)
5 (16.7%)

SD: Standart Deviation; M: Male; F: Female; IOP: Intraocular Pressure; BCVA: Best Corrected Visual Acuity;

DR: Diabetic Retinopathy; NPDR: Nonproliferative Diabetic Retinopathy.