Assertion: astigmatism's eye | /r/HasProperty | randomized to early treatment
Facets:
value: in the etrop study
type: LOCATION
value: versus conventional treatment
type: OTHER
Source sentences:
text: In the ETROP study, 401 infants with prethreshold ROP in one or both eyes were randomized to early treatment (laser photocoagulation at high-risk prethreshold ROP) versus conventional treatment only if threshold ROP developed.