Question

What is short sightedness? mention the reason for this defect. name the type of lens used to correct this defect. how does this lens correct the eye defect?

Answer 1

Answer:

Myopia or Nearsightedness occurs when the eye loses its ability to focus on far-off objects as the lenses do not possess a long focal length. Objects that are near are clearly visible to patients of this defect.

Reason: it can be inherited from the parents

Type of lens used to correct:A diverging lens can be used to fix the problem of nearsightedness.

earlier the image was blurry as the light rays were not diverging at the right point and creating a focused image. The rays get focused before it reaches the retina. The convergence of the light rays takes place due to the cornea producing an image on the retina