Keratoconus is a corneal disorder that it becomes irregularly cone shaped. it gives rise to strong and irregular astigmatism causes distortion of vision and increased sensitivity to glare and light.
Keratoconus symptoms usually onset between 18-30 years of age and may progress, the cornea bulges more and vision becomes further distorted. Special contact lenses or surgery may be necessary.
Keratoconus can be linked to allergy problems such as hay fever and eczema through excessive eye rubbing. If you or a member of your family has tendency towards allergy and itchy eyes it is important to refrain from rubbing them despite a strong urge to do so.