Commonly referred to as nearsightedness, is a condition in which a person can see near objects more clearly than distant objects. In the myopic eye, light rays from distant objects focus before they reach the retina.
Commonly referred to as farsightedness, is a condition in which a person can see distant objects more clearly than near objects. This habitually occurs when an eyeball is small than normal because the light rays from near objects do not focus properly on the retina.
It is a condition in which light does not focus evenly onto the retina. Instead, multiple focus points occur (in front and/or behind the retina), causing the vision to be blurred or distorted.
It is a normal loss of sight that occurs around 40 as we age. Even those who have had perfect eyesight will start to have trouble seeing small print clearly. Unlike astigmatism, nearsightedness, and farsightedness, which are related to the shape of the eyeball and caused by genetic and environmental factors, presbyopia stems from the gradual thickening and loss of flexibility of the natural lens of your eye.