how do you correct the defect presbyopia
Answers
Answered by
2
Answer:
dekh lo answer
Explanation:
person with presbyopia cannot read letters without spectacles. It may also happen that a person suffers from both myopia and hypermetropia. This type of defect can be corrected by using bi-focal lenses. A bifocal lens consists of both convex lens (to correct hypermetropia) and concave lens (to correct myopia).
Similar questions