Newborn eye is ?
Correct Answer: Hypermetropic
Description: Ans. is 'b' i.e., Hypermetropic Eye at bih Anteroposterior diameter of eye ball is about 16.5 mm (70% of adult size). Adult size is attained by 7-8 years. Corneal diameter is about 10 mm. Adult size (11.7 mm) is attained by 2 years of age. Anterior chamber is shallow and angle is narrow. Lens is spherical at bih. Retina :- Apa from macular area, the retina is fully differentiated. Macula differentiates 4-6 months after bih. Myelination of optic nerve fibres has reached the lamina cribrosa. New born is usually hypermetropic by +2 to +3D. Orbit is more divergent (50deg) as compared to adult (45deg). Lacrimal gland is still underdeveloped and tears are not secreted.
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