Focuses the light that passes through it to create clear images of objects is the

Focuses the light that passes through it to create clear images of objects is the

• A. Cornea
• B. Iris
• C. Lens
• D. Aqueous humor

Answer: (C)

Focusing light to form a sharp image on the retina is done mainly by the lens. The lens can change its shape with the ciliary muscles to adjust focal length—flattening for distant objects and becoming rounder for near ones—so the light rays converge correctly on the retina. The cornea provides most of the eye’s initial bending of light, but the lens fine-tunes focus for clear detail at varying distances. The iris controls pupil size, and the aqueous humor is the fluid that nourishes and maintains pressure in the eye. Therefore, the lens is the structure that focuses to produce a clear image.

Focusing light to form a sharp image on the retina is done mainly by the lens. The lens can change its shape with the ciliary muscles to adjust focal length—flattening for distant objects and becoming rounder for near ones—so the light rays converge correctly on the retina. The cornea provides most of the eye’s initial bending of light, but the lens fine-tunes focus for clear detail at varying distances. The iris controls pupil size, and the aqueous humor is the fluid that nourishes and maintains pressure in the eye. Therefore, the lens is the structure that focuses to produce a clear image.