OUTCOME OF EYES TREATED FOR RETINOPATHY OF PREMATURITY IN POSTERIOR ZONE I An Eastern India Study

Purpose: To analyze the outcomes of eyes treated for retinopathy of prematurity in posterior Zone I. Methods: In a part retrospective (9 years) and part prospective (1 year) interventional study, we analyzed eyes treated for retinopathy of prematurity in posterior Zone I with a minimum follow-up for 6 months. Results: This study included 109 eyes of 56 infants; mean gestational age and birth weights were 29.3 (+/- 2.1) weeks and 1112.5 (+/- 381.9) g, respectively. The treatment included intravitreal anti-vascular endothelial growth factor as the initial treatment modality in 101 eyes (92.6%), either alone (27 eyes) or combined with laser or vitreous surgery (73 eyes). Laser was the initial treatment modality in eight eyes, either alone (n = 3) or in combination with surgery (n = 5). With anti-vascular endothelial growth factor alone, 30.68% (n = 27) eyes responded favorably, and the remaining 69.32% (n = 59) eyes needed retreatment (laser in the majority). At the final follow-up, 89.9% (out of 109) of eyes did well anatomically. Good outcome was significantly linked to no detachment at presentation (P < 0.0001) and the presence of well-defined central vascular trunks (P = 0.001). Conclusion: Treating the eyes before retinal detachment with bevacizumab followed by laser (and surgery, if needed) results in a favorable outcome in babies with posterior Zone I retinopathy of prematurity.