The process by which the eye's lens changes shape to focus near or far objects on the retina?

The process by which the eye's lens changes shape to focus near or far objects on the retina?

• A. Lens
• B. Accommodation
• C. Pupil
• D. Cornea

Answer: (B)

Accommodation is the process by which the eye’s lens changes shape to focus near or far objects on the retina. When you look at something up close, the ciliary muscles contract, reducing tension on the zonular fibers. This lets the lens become more curved, increasing its refractive power so light rays converge on the retina. For distant objects, the ciliary muscles relax, the zonular fibers pull tight, and the lens flattens, decreasing its refractive power so distant light rays focus correctly on the retina. The lens is the structure that changes shape, while the cornea, pupil, and other parts play different roles in vision. Over time, accommodation can lessen with age, leading to difficulty focusing on close objects.

Accommodation is the process by which the eye’s lens changes shape to focus near or far objects on the retina. When you look at something up close, the ciliary muscles contract, reducing tension on the zonular fibers. This lets the lens become more curved, increasing its refractive power so light rays converge on the retina. For distant objects, the ciliary muscles relax, the zonular fibers pull tight, and the lens flattens, decreasing its refractive power so distant light rays focus correctly on the retina. The lens is the structure that changes shape, while the cornea, pupil, and other parts play different roles in vision. Over time, accommodation can lessen with age, leading to difficulty focusing on close objects.