What is meant by least distance of distinct vision?How does this vary between the very young and old people?
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The near point of an eye is known as least distance of distinct vision.
The minimum distance at which an object must be placed so that normal eye may see it clearly without any strain is called least distance of distinct vision.
for normal human eye, least distance of distinct vision is 25 cm .
in old age, the near point gradually recedes and becomes more than 25cm
The minimum distance at which an object must be placed so that normal eye may see it clearly without any strain is called least distance of distinct vision.
for normal human eye, least distance of distinct vision is 25 cm .
in old age, the near point gradually recedes and becomes more than 25cm
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