Keratoscope
Keratoscope
Keratoscope (pronounced: ker-AT-uh-skohp) is a medical instrument used in the field of Ophthalmology to examine the cornea of the eye. It is primarily used to detect irregularities in the shape and curvature of the cornea, such as those caused by astigmatism.
Etymology
The term "Keratoscope" is derived from the Greek words "kerato," meaning horn or cornea, and "scope," meaning to view or examine.
Usage
A Keratoscope is used by ophthalmologists and optometrists to diagnose and monitor conditions that affect the cornea's shape, such as keratoconus and corneal dystrophy. It can also be used to assess the fit of contact lenses and to plan for refractive surgery.
Procedure
During a Keratoscope examination, the patient is asked to look into the device while the doctor observes the reflection of a series of concentric rings on the cornea. Any distortion or irregularity in the reflection of these rings indicates a potential corneal abnormality.
Related Terms
- Keratometer: A similar instrument that measures the curvature of the anterior surface of the cornea.
- Placido disc: A disc used in some types of keratoscopes, featuring a series of concentric rings that are reflected on the cornea.
- Photokeratoscopy: A photographic technique used in conjunction with keratoscopy to provide a permanent record of the corneal surface.
External links
- Medical encyclopedia article on Keratoscope
- Wikipedia's article - Keratoscope
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