Short-sightedness is due to the ____?

Short-sightedness is due to the ____?

دور اندیشی ____ کی وجہ سے ہے؟
Explanation

Short-sightedness is caused due to elongation of the eyeball


 It also may result when the
curve of the cornea is too steep. 


The messages sent from the retina to the brain are perceived as blurry