Correct option is D
The correct answer is (d) Fovea.
· The fovea is a small depression in the retina of the eye where visual acuity (sharpness of vision) is the highest.
· It is located at the center of the macula, a part of the retina responsible for central vision.
· The fovea is densely packed with cone cells, which are photoreceptor cells responsible for detecting fine detail and color in well-lit conditions.
· Unlike other parts of the retina, the fovea lacks rod cells and blood vessels, allowing for unobstructed, sharp central vision.
Additional Information:
· Vitreous body: This is the gel-like substance that fills the eye cavity but does not play a role in visual acuity.
· Blind spot: This is the area where the optic nerve exits the retina, containing no photoreceptor cells, hence no vision occurs here.
· Choroid: This is a vascular layer of the eye between the retina and sclera, providing nourishment to the retina but not responsible for sharp vision.