
Corneal topography is performed with a non-contact instrument called a corneal topographer. These instruments work by projecting light rings onto the cornea and then using a computer to analyze the reflected image.
Important clinical functions of corneal topography include the following
- earlier and more accurate diagnosis of corneal disease
- earlier and more accurate diagnosis of keratoconus
- assist in determining treatment plans
- preoperative surgical risk assessment
- postoperative surgical management
Corneal topography may be indicated in the following clinical situations
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