Question

what is the value of least distance of distinct vision of a healthy human being
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Answer 1

25 centimetres or 0.25 metre

it is the least distance from your eyes where you can see objects without any strain to the eyes.

do not read books closer that 25cm from your eyes, it is bad for your eyes.

the farther the distance of the object you look from the eye, the less strain your eyes feel

Answer 2

Answer:

25 cms

Explanation:

The normal human eye can focus a sharp image of an object on the eye if the object located any where from infinity to a certain point called the "Near Point". The minimum distance of an object from eye to have its clear image is called "Least Distance of Distinct Vision". This distance is about 25 cm from the eye