Choose the correct pair from the following:
(a) Lens – Accomplishes accommodation by changing the curvature of its plane
(b) Retina – Holds the lens with the help of the suspensory ligament
(c) Cornea – Secretes aqueous humor
(d) Choroid – Helps to maintain the shape of the eyeball
(a) Lens – Accomplishes accommodation by changing the curvature of its plane
Explanation:
The eye lens is a transparent, elastic, and biconvex structure held by suspensory ligaments. It changes its curvature to focus light on the retina, allowing clear vision of near and distant objects, a process called accommodation. The retina is the light-sensitive layer with rod and cone cells for vision, not related to holding the lens. The cornea admits light and acts as a refractive medium but does not secrete aqueous humor; the aqueous humor is secreted by the ciliary body. The choroid, a vascular coat, prevents internal reflection of light and nourishes the eye but does not maintain eye shape.
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