Question

define myopia and hypermetropia.​

Answer 1

Myopia is the defect in the eye which causes the far point of the eye to reduce from infinity but near point remains same. The person can't see clearly far objecta.
Hypermetropia is the defect in the eye due to which a person can't see nearly placed object clearly. It causes the near point of the eye to receed away from the eye but far point remains same

Answer 2

• Myopia is also known as nearsightedness
• hypermetropia is also known as farsightedness
• In myopia a person with this defect can see near by object clearly but is unable to see distinct object
• In hypermetropia a person with this defect can see far away object clearly but can't see nearby objects
• to correct myopia defect one uses concave lens spectacles
• to correct hypermetropia defect one uses convex lens spectacles