Keratoconus: Cone-shaped corneas

Keratoconus: Cone-shaped corneas

In keratoconus the corneas become cone-shaped, causing nearsightedness and visual distortion. The condition affects more women than men and usually affects both corneas, though to different degrees. Onset often begins around puberty and progresses slowly over five to twelve years.

Treatment begins with glasses. When they are no longer adequate, contact lenses are used. Expert fitting is needed and frequent changes of lenses are not uncommon.
If keratoconus progresses beyond the corrective range
of contact lenses, a corneal transplant may be needed.

Corneal transplant
Distorted cornea is removed using circular tool
Donor cornea is cut using same tool, then sutured into place with ultrafine thread

Normal eye
Keratoconus eye
Image blurred and distorted
Trephine cutting tool

Text and illustrations by Kevin T. Boyd

Acupressure for eyes
Here is a list of acupressure points for symptoms of the Eye on