Corneal topography | 合法醫療器材資訊網

Cornealtopography,alsoknownasphotokeratoscopyorvideokeratography,isanon-invasivemedicalimagingtechniqueformappingtheanteriorcurvatureof ...

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Medical imaging technique

Corneal topography, also known as photokeratoscopy or videokeratography, is a non-invasive medical imaging technique for mapping the anterior curvature of the cornea, the outer structure of the eye. Since the cornea is normally responsible for some 70% of the eyes refractive power,[1] its topography is of critical importance in determining the quality of vision and corneal health.

The three-dimensional map is therefore a valuable aid to the examining ophthalmologist or optometrist and can assist in the diagnosis and treatment of a number of conditions; in planning cataract surgery and intraocular lens implantation; in planning refractive surgery such as LASIK, and evaluating its results; or in assessing the fit of contact lenses. A development of kerato...