Question on: JAMB Physics - 2024
The defect of the eye lens which occurs when the ciliary muscles are weak is
A
Spherical aberration
B
Astigmatism
C
Presbyopia
D
Myopia
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Correct Option: C
The correct answer is Presbyopia. Here's why:
- Presbyopia: Condition where the lens loses flexibility with age, and ciliary muscles weaken, making it difficult to focus on near objects.
- Spherical aberration: Light rays passing through the lens are not focused at a single point.
- Astigmatism: Irregular cornea or lens shape causing blurred vision at all distances.
- Myopia: Nearsightedness; distant objects appear blurry as images focus in front of the retina.
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