Keratoconus is a disease of the eye, specifically of the cornea.


In an eye with Keratoconus, the cornea thins and bulges out into an irregular cone shape. The light coming through is distorted the lens cannot focus it properly and vision is affected.


For most people, the disease affects both eyes, but you can have it only one eye. It’s also usual for one eye to be worse than the other. The disease can range from very mild, where you have almost no vision problems, to severe where you can have very poor vision. Some of the typical problems with Keratoconus are:


  • “Ghosting” which is blurry double or treble images mostly seen when you bright lights against a dark background, this can make night vision poor and have an impact on night driving
  • Sensitivity to light
  • Blurred vision
  • Eye strain
  • Itching
  • In more advanced cases, your cornea may be scarred.
  • In the worst cases, you can get a localised rupture of the cornea called corneal Hydrops.



Learn more about Keratoconus by downloading our leaflet here.