What defines type 1 ROP requiring treatment?

Type 1 ROP: Zone I any stage with plus disease; Zone I Stage 3 without plus; Zone II Stage 2 or 3 with plus disease. ETROP trial showed treating type 1 reduces unfavorable outcomes by 50% compared to threshold criteria.

When is bevacizumab preferred over laser for ROP?

Anti-VEGF (bevacizumab or ranibizumab) is preferred for Zone I posterior ROP and aggressive posterior ROP because laser cannot adequately treat posterior lesions. However, long-term systemic VEGF suppression effects remain under study.

ROP Plus Disease Laser Threshold

Identify retinopathy of prematurity stages and zones meeting threshold and pre-threshold criteria for laser photocoagulation or anti-VEGF treatment to prevent retinal detachment.

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Frequently Asked Questions

What defines type 1 ROP requiring treatment?

When is bevacizumab preferred over laser for ROP?