Biology for IGCSE & O level - Coordination And Response (Section 4 - No. 38)
What changes occur in the eye when focusing on a distant object?
The ciliary muscles contract, and the lens becomes more spherical.
The ciliary muscles relax, and the suspensory ligaments tighten, making the lens flatter.
The pupil constricts to reduce the amount of light entering the eye.
The lens becomes more curved and rounded.
Explanation
For distant objects, the ciliary muscles relax, the suspensory ligaments tighten and the lens becomes flatter.
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