British Contact Lens Association

Glossary

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1. K-readings

   The measurement of the flattest and steepest meridians of the patient's cornea.

2. Keratitis

   An inflammation of the cornea that can be caused by mechanical irritation, solution sensitivity, allergy, infection, or other disease process.

3. Keratoconjunctivitis

   An inflammation involving both the cornea and the conjunctiva.

4. Keratoconus

   A condition where the cornea becomes cone-shaped, causing major vision distortion. People with keratoconus are particularly challenging to contact lens fitters, who usually must prescribe custom-made lenses for them.

5. Keratometer

   An instrument used to measure the curvature of the two principle meridians of the central cornea.

6. Keratoplasty

   Corneal transplant.