clarify................
Answers
If the person can't see the objects at 3m (or beyond), it's myopia as it can't see distant objects.
I am not sure of the next question. if a person can't see objects beyond 25cm, then he can't see anything clearly. Objects within 25cm are not clearly visible even to normal persons. And you said he can't see clearly beyond 25cm. Then he can't see anything clearly.
Objects within 25cm are not clearly visible even to normal eyes. so we can't say hypermetropia.
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If a person is having difficulty in seeing things clearly at 25cm but can see clearly at a larger distance (maybe 50cm or 1m and beyond) then it's hypermetropia.
Ex: a person keeping the newspaper at 60cm(instead of at 25cm or so) to read properly
If a person is having trouble seeing things clearly BEYOND A CERTAIN DISTANCE, like 1m, 3m, 5m, or 10m, he has myopia As he can't see objects at infinity clearly.
Ex: Student at last bench having trouble in seeing the things on blackboard
If the person can't see the objects at 3m (or beyond), it's myopia as it can't see distant objects.
I am not sure of the next question. if a person can't see objects beyond 25cm, then he can't see anything clearly. Objects within 25cm are not clearly visible even to normal persons. And you said he can't see clearly beyond 25cm. Then he can't see anything clearly.
Objects within 25cm are not clearly visible even to normal eyes. so we can't say hypermetropia.
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If a person is having difficulty in seeing things clearly at 25cm but can see clearly at a larger distance (maybe 50cm or 1m and beyond) then it's hypermetropia.
Ex: a person keeping the newspaper at 60cm(instead of at 25cm or so) to read properly
If a person is having trouble seeing things clearly BEYOND A CERTAIN DISTANCE, like 1m, 3m, 5m, or 10m, he has myopia As he can't see objects at infinity clearly.
Ex: Student at last bench having trouble in seeing the things on blackboard
HOPE SO IT WILL HELP......