What attaches the lens to the ciliary body?

• A. Zonular fibers (suspensory ligaments or zonules of Zinn) attaching on either side of the lens equator
• B. Iris sphincter muscle
• C. Retina photoreceptors
• D. Optic nerve head

Answer: (C)

Zonular fibers (suspensory ligaments of Zinn) connect the ciliary body to the lens, attaching to the lens capsule at its equator on both sides and extending from the ciliary processes. This suspensory system holds the lens in place and transmits the ciliary muscle’s changes in tension to alter lens shape for accommodation. The other structures—iris sphincter, retina photoreceptors, and the optic nerve head—have different roles and do not suspend the lens.