Table 1. VEGF, HIF-1α, iNOS and COX-2 protein expressions.

Degree	Choroidal melanoma				Melanocytic nevi
	VEGF	HIF-1α	iNOS	COX-2	VEGF	HIF-1α	iNOS	COX-2
-	15	23	11	18	10	13	10	14
+	14	10	18	12	4	1	1	0
++	13	13	12	12	1	0	2	1
+++	8	4	9	8	0	1	2	0