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Purpose: To compare the incidence of type retinopathy of prematurity (ROP) in patients small for gestational age (SGA) and in patients appropriate for gestational age (AGA) in a developing country. Material and Method: We included in this study infants (n=162) with gestational age (GA) ≤34 weeks who were screened for ROP in a neonatal intensive care unit between June 2007 and December 2011 and were followed up until the retina was completely vascularized or ROP was regressed. Type 1 ROP was defined according to the ETROP study. To describe the incidence of type 1 ROP, data were analyzed in two main groups: (A) SGA-group and (B) AGA-group. SGA was defined as birth weight below the 10th percentile for gestational age. GA in weeks, birth weight (BW) in grams (g), ROP at any stage, type 1 ROP, and post menstrual age (PMA) at type 1 ROP were evaluated for the two groups. Retrospective review of records was performed. Results: BW (in mean±SD) was 832.45±131.74 g in group A and 962.97±351.47 g in group B; GA (in mean±SD) was 29.27±2.4 weeks in group A and 27.36±2.8 weeks in group B, with significant difference between the groups (p=0.001 vs. p