Prakalapakorn SG, et al. - In this study, researchers assessed the vascular features present when treatment was determined to be needed for infants with retinopathy of prematurity (ROP), and the number of days from the last examination when the vessels of both eyes were noted to be normal until a decision was made to treat. Findings demonstrated that all but 1 had preplus or plus disease at the time when infants were determined to need treatment for ROP. Inclusion of all of zone I to narrow-field imaging for ROP screening was recommended in order to identify the rare treatment-requiring ROP with normal posterior pole vessels. Also, if corroborated, with sufficient image quality, weekly photographic screening of zone I likely should capture changes indicative of impending ROP requiring treatment.