Table 2.

Serum Vit D levels in cases and controls.

Vit D level ng/ml	RVO No. (%)	Controls No. (%)
<10	10 (25%)	0 (0%)
10–15	14 (35%)	0 (0%)
15–20	14 (35%)	5 (12.5%)
20–25	2 (5%)	27 (67.5%)
25–30	0 (0%)	7 (17.5%)
>30	0 (0%)	1 (2.5%)