Limbus sign
Limbus sign
Limbus sign (pronunciation: /ˈlɪmbəs saɪn/) is a medical term used in ophthalmology to describe a specific clinical finding in the eye.
Etymology
The term "limbus" originates from the Latin word for "border" or "edge", referring to the border area between the cornea and the sclera in the eye. The term "sign" in medical parlance refers to an objective evidence of a disease, which can be observed by a doctor.
Definition
The Limbus sign is a clinical sign observed in certain eye conditions, particularly keratoconus, a degenerative disorder of the eye. It is characterized by the protrusion of the cornea at the limbus, the border area between the cornea and the sclera.
Related Terms
- Keratoconus: A degenerative disorder of the eye in which the cornea thins and changes shape to become more conical than the normal gradual curve.
- Cornea: The clear front surface of the eye that covers the iris, pupil, and anterior chamber, providing most of the eye's optical power.
- Sclera: The white part of the eye, a tough, fibrous tissue that covers most of the eye and protects the inner parts of the eye.
See Also
External links
- Medical encyclopedia article on Limbus sign
- Wikipedia's article - Limbus sign
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