Brief interpretation of the international classification of retinopathy of prematurity (third edition) / 中华眼底病杂志

ABSTRACT

" The international classification of retinopathy of prematurity (ROP) (The 3rd edition)" , retains current definitions such as zone, stage, and circumferential extent of disease, however, there are also many updates. Major updates include (1) increase of the definition of posterior pole Ⅱ; (2) introduction of a new concept "notch"; (3) definition of stage 5's subcategorization; (4) recognition that a continuous spectrum of vascular abnormality exists from normal to plus disease. Updates also include the definition of "aggressive ROP" to replace "aggressive-posterior ROP" . ROP regression and reactivation are described in detail, with additional description of long-term sequelae.