Question

The minimum distance at which a healthy
young person see the printed letters with
out strain in eys. is called​

Answer 1

Hey mate ,

The minimum distance at which a healthy young person see the printed letters without strain in eyes is called the near point .

And it's value is 25cm.

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Answer 2

Explanation:

The minimum distance, at which objects can be seen most distinctly without strain, is called the least distance of distinct vision or near point of the eye. For a young adult with normal vision, the near point is about 25 cm