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About KC

Bringing clarity to KC

Keratoconus, often referred to as “KC,” is a progressive eye disease in which the cornea weakens and thins over time, causing the development of a cone-like bulge and blurry or distorted vision. KC can result in significant vision loss and may lead to a corneal transplant in severe cases.

Know the signs and symptoms to look for  

Signs and symptoms of keratoconus can include but are not limited to: 

  • Excessive eye rubbing
  • Mildly blurred vision
  • Difficulty seeing at night
  • Frequent prescription changes
  • Frequent headaches
  • Vision that cannot be fully corrected with glasses or contact lenses
  • A family history of KC

See what’s really going on when you rub your eyes

Damien Gatinel, MD, PhD, Rothschild Foundation Hospital

A recent survey found that distortion, blurriness, light sensitivity, and eye irritation/pain were the most common vision issues affecting keratoconus patients*

*Glaukos data on file

The potential causes of KC

The exact cause of KC is unknown, but genetics, the environment, and the endocrine system (which includes hormonal changes) could play a role in the development of KC. And, yes, excessive eye rubbing may contribute, too. 

Who gets KC?

Keratoconus typically affects males and females alike, but some studies have shown a higher rate in males.

The disease is also found in all ethnic groups with some studies showing higher incidence rates among Asian, black, and Hispanic populations.

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Are you seeing the difference?

Drag the slider in either direction to simulate the vision of someone with keratoconus. 

Simulation of Keratoconus Patient Vision. Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Changes have been made to the original image. Times Square image by Spreng Ben (CC BY-NC-SA 2.0)

Importance of Early Detection
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