alleryCataract refers to:
ADetachment of the retina
BClouding of the crystalline lens
CPressure inside the eyeball
DLoss of optic nerve fibres
Answer & Solution
Correct answer: B. Clouding of the crystalline lens
1. With ageing the lens may become milky and cloudy.
2. This obstructs light and reduces vision.
3. The condition is called cataract; treatment is surgical lens replacement.
_Source: syllabus Science, Ch 10 "The Human Eye and the Colourful World", §10.1.1_
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