6(iv)
Mr. Sharma is a 76 year old man. His vision was gradually becoming blurred. He consulted an eye doctor and it was diagnosed as cataract.
(a) Which part of the eye does cataract affect?
(b) Why does the vision become blurred?
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(a) Lens
(b) The vision becomes blurred because the lens becomes cloudy or opaque, preventing light from passing clearly to the retina.