Light beams entering the eye focus in front of the retina in myopia. Eyes having longer antero-posterior axis or alterations in cornea or crystalline lens can cause myopia.
The word myopia is etimologically derived from Latin with the meaning "closed eye", because myopic people squint their eyes when looking to far objects.
Myopic paeople see near objects clearly while they see far objects blurred. Myopia usually is hereditary and appears at school ages.
With the growing up of a child myopia grows too and glasses need to be changes every 6 months like shoe size.
When growing up ends the glass diopters also will be stabilised.
Myopia can be corrected with glasses or contact lenses, as well as laser treatments like LASIK, LASEK and PRK.