All of the following are features of central retinal aery occlusion except
Correct Answer: Multiple superficial haemorrhages
Description: Central retinal aery occlusion (CRAO) It occurs due to obstruction at the level of lamina cribrosa. clinical features: Symptoms: Patient complains of sudden painless loss of vision. Signs: Direct pupillary light reflex is absent. On ophthalmoscopic examination retinal aeries are markedly narrowed but retinal veins look almost normal. Retina becomes milky white due to oedema. Central pa of the macular area shows cherry-red spot due to vascular choroid shining through the thin retina of this region. Blood column within the retinal veins is segmented (cattle- trucking). After a few weeks the oedema subsides, and atrophic changes occur which include grossly attenuated thread-like aeries and consecutive optic atrophy. Ref:- A K KHURANA; pg num:-255
Category:
Ophthalmology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now