Keratometry
Keratometry
Keratometry (pronounced: ker-uh-TOM-uh-tree) is a diagnostic procedure used in Ophthalmology to measure the curvature of the anterior surface of the Cornea, primarily for assessing the extent and axis of Astigmatism.
Etymology
The term "Keratometry" is derived from the Greek words 'kerato', meaning cornea, and 'metry', meaning to measure.
Procedure
Keratometry is performed using a device known as a Keratometer or an Ophthalmometer. The device projects a series of concentric rings of light onto the cornea. The reflection of these rings is then observed through the keratometer's eyepiece and the curvature of the cornea is calculated based on the size and shape of the reflected image.
Related Terms
- Astigmatism: A common vision condition that causes blurred vision due to the irregular shape of the cornea or the lens inside the eye.
- Cornea: The clear, dome-shaped surface that covers the front of the eye.
- Ophthalmology: The branch of medicine that deals with the diagnosis and treatment of eye disorders.
- Keratometer: A diagnostic instrument for measuring the curvature of the anterior surface of the cornea.
- Ophthalmometer: Another term for a keratometer.
See Also
External links
- Medical encyclopedia article on Keratometry
- Wikipedia's article - Keratometry
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