Question

Mypia, prsbyopia , Hypermetropia, Spectrometer.

Answer 1

Answer:

myopia is near-sightedness which means a condition in which close objects appear clearly, but far ones does not.

presbyopia is long-sightedness caused by the loss of elasticity of lens of the eye

hypermetropia is far-sightedness which means a condition in which far objects appear clearly but not the near ones

spectrometer is a device which is used to seperate spectral components of a physical phenomena

Answer 2

Answer:

Nearsightedness usually occurs when your eyeball is longer than normal or your cornea is curved too steeply. Instead of being focused precisely on your retina, light is focused in front of your retina, resulting in a blurry appearance for distant objects.