Question

what is least distance of distinct vision​

Answer 1

Answer:

Least distance of distinct vision

In optometry, the least distance of distinct vision (LDDV) or the reference seeing distance (RSD) is the closest someone with "normal" vision (20/20 vision) can comfortably look at something. In other words, LDDV is the minimum comfortable distance between the naked human eye and a visible object.

Answer 2

Answer:

7 to 8 cm in children

25cm in adults

1m or above in old age persons

Explanation:

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