The elongation of the eye-ball results in the defect of vision called ___.

Nearsightedness or myopia is a vision problem in which items close to you are plainly seen but objects further away are blurry.

1. When light rays bend (refract) wrongly due to the structure of your eye, images focus in front of your retina rather than on your retina.
2. This is due to the eyeball being too big or the cornea or crystalline lens being overly strong.
3. When we spend more time focused on close items, such as phones, screens, or even paperbacks, our eyeballs elongate, preventing the eye from bending light properly.
4. Thus, the elongation of the eye-ball results in the defect of vision called nearsightedness or myopia.