The axial length of the eye is greater than that of the eye which does not require corrective lenses (emmetropia).
The patient has bad sight at a distance because the ocular structures focus images before retinal surface.
Corrective lenses move the image on the retina allowing the patient to see.
Increasing of axial length leads to an increase in visual defect.
Eye growning may lead to anatomical changes in ocular structures that may predispose to retinal detachment or myopic maculopathy.
Therefore myopic patients should program regular checkups of retinal fundus with pupil dilatation.