What is the near point or least distance of distinct vision for a normal human eye?

Question

Accepted Answer

The near point, also known as the least distance of distinct vision, for a normal human eye is the minimum distance from the eyes at which an object can be placed to see it clearly and comfortably without any strain. For a healthy young adult with normal vision, this standard distance is approximately 25 centimetres, allowing proper focusing by the ciliary muscles.

The Human Eye and Colourful World

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