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If a person can see an object clearly wh...

If a person can see an object clearly when it is placed at about 25 cm away from him, he is suffering from

A

myopia

B

hypermetropia

C

astigmatism

D

None of these

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question, we need to analyze the information provided about the person's vision: 1. **Understanding Near Point**: A normal human eye has a near point of about 25 cm. This means that a person with normal vision can see objects clearly when they are placed at this distance or farther away. 2. **Analyzing the Given Condition**: The question states that the person can see an object clearly when it is placed at about 25 cm away from him. This indicates that his near point is at the normal distance of 25 cm, which means he does not have a problem seeing near objects. 3. **Considering Far Point**: The far point of a normal eye is considered to be at infinity, meaning a person with normal vision can see objects clearly at a great distance. The question does not provide any information about the person's ability to see far away, so we can assume that his far point is also normal. 4. **Identifying Possible Vision Problems**: - **Myopia (Nearsightedness)**: In myopia, a person has difficulty seeing distant objects clearly, but can see nearby objects well. Since the person can see objects at 25 cm clearly, he does not have myopia. - **Hypermetropia (Farsightedness)**: In hypermetropia, a person has difficulty seeing nearby objects clearly. Since this person can see objects at 25 cm clearly, he does not have hypermetropia. - **Astigmatism**: This condition involves blurred vision due to an irregular shape of the cornea. The question does not mention any issues with straight lines or blurred vision, so we can rule this out as well. 5. **Conclusion**: Since the person can see objects at 25 cm clearly and there are no indications of issues with far vision or other conditions, the most appropriate conclusion is that he is not suffering from any of the mentioned vision problems. Therefore, the answer is "none of these." **Final Answer**: The person is suffering from none of these conditions. ---
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