Ophthalmology All of the following are true for medullated nerve fibres of the retina except: A Appear as a whitish patch usually present around the disc B Are commonly seen at bih in premature children C Disappear in patients with optic atrophy D May cause enlargement of blind spot π‘ Explanation All of the following are true for medullated nerve fibres of the retina except: β Correct Answer: B. Are commonly seen at bih in premature children