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Q.

What is the least distance of distinct vision for a normal eye?


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a

25 cm

b

30 cm

c

35 cm

d

None of these 

answer is A.

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Detailed Solution

The least distance of distinct vision for a normal eye is 25 cm.
The shortest distance at which humans can see objects clearly without exertion is referred to as the least distance of distinct vision. A normal human's minimum distinct vision distance is 25 cm. The minimum distance of distant vision for young individuals is within 25 cm. However, this varies with age. The shortest distance of clear eyesight for babies is roughly 5 to 8 cm. As a person ages, the culinary muscles involved in changing the eye lens get weaker. As a result, the strength of accommodation decreases, and the shortest distance of clear vision for older persons (55 years) increases. Presbyopia is the medical term for this problem.
 
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