Question

tell about cataract and astigmatism eye defect and which type of lens used and why ​

Answer 1

Answer:

Significant cataracts block and distort light passing through the lens, causing visual symptoms and complaints.

And Astigmatism A common imperfection in the eye's curvature.

With astigmatism, the front surface of the eye or the lens inside the eye is curved differently in one direction than the other .And used lens for natural lens .