The pa of the Lens which undergoes a change in shape during accommodation is?: (A) Anterior central pa, (B) Posterior central pa, (C) Anterior peripheral pa, (D) Posterior peripheral pa
Answer is C. Mechanism of AccommodationEye at rest Ciliary ring is large and keeps the zonules tense Contraction of ciliary muscle Ciliary ring shoened and releases zonular tension on lens capsule - allows the elastic capsule to act unrestrained to deform the lens substance - lens (anterior peripheral pa ) alters its shape to become more convex or conoidal (Refer: AH Khurana, Comprehensive Textbook of Ophthalmology,5thedition, pg no: 41)