what is myopia and hypermetropia? what its causes give mean remedies?
Answers
Answered by
1
Answer:
myopia is a defect of vision where a person is unable to see distant objects
It is due to
1. big eyeballs
2.high converging power of lens
hypermetropia is a defect of vision where a person is unable to see nearby objects.
It is due to
1. short eye balls
2.weak converging power of eye lens
correction of myopia: concave lens ( diverges light rays)
correction of hypermetropia : convex lens (converges lens )
Answered by
1
Answer:
near sightedness means when we can't see the far objects but can see nearby objects called myopia.
It's causes are:
- due to elongation of eye ball
- due to decrease in focal length of eye lens
it can be corrected by using concave lens
long sightedness means when we are not able to see our nearby objects but can see the the far objects called hypermetropia
it's causes are :
- focal length of eye lens is too long
- eyeball becomes too short
it can be corrected by using convex lens
Similar questions