Question

Read the given below table and answer the questions.
Name of the vision defect
Lens
Myopia
Concave
Hypermetropia
Convex
Presbyopia
Bi focal
Questions:
i) Which defect of vision is nearsightedness?
ii) Which lens is prescribed by doctor, the patient is suffering with
gradual weakening of ciliary muscles and diminishing flexibility
of eye lens ?​

Answer 1

Explanation:

i) myopia

ii) convex

hope it helps

Answer 2

Answer:

(i)

• Myopia is a defect that is talked about in the first question in this as the name suggests nearsightedness means the objects nearer to sight are visible.

(ii)

• The  weakening of the ciliary muscles and flexibility happens normally in patients when they start aging this can also be said as a prolonged case of hypermetropia in which the patient is unable to focus due to poor muscle reaction that happens in old age hence this is known as presbyopia.

• And the lens that should be used to correct this case is bifocal lens so that it helps them in seeing both objects that are near and farther. "