Persistence and Disappearance of the Hyaloid Artery in Newborn African Green Monkeys

Abstract

Forty-six apparently healthy newborn African green monkeys (Cercopithecus aethiops) were examined for the persistence and disappearance of the hyaloid artery with an opthalmoscopic camera. On the day of birth, the hyaloid artery was detected in all the newborn animals. Between 21 and 31 days of age, the hyaloid artery disappeared without exception. The persistence of the hyaloid artery in the newborns and its disappearance during an early period of life can be regarded as a normal phenomenon in the developmental process of infant African green monkeys.