Table 1.

Patient characteristics and disease classification of study eyes

	NSR (n=26)	NPSR (n=14)	PSR (n=18)	Total (n=58)
Gender
Male	15	5	14	34
Female	11	9	4	24
Mean age (years)	17.1±4.3	16.9±5.0	19.1±2.7
Genotype
Sbeta Thal	2	0	0	2
SBetaPlus Thal	2	2	0	4
SC	8	4	6	18
SS	14	8	12	34

Note: Data are presented as mean ± SD.

Abbreviations: NSR, no sickle retinopathy; NPSR, nonproliferative sickle retinopathy; PSR, proliferative sickle retinopathy.