Corneal Topography
What is Corneal Topography?
Corneal topography is a no-touch imaging technique to create a map of the cornea, the front window of the eye. This shows the shape and thickness of the cornea and can identify irregularities.
How is Corneal Topography performed?
Corneal topography is performed in the clinic in a seated position. After placing the chin on a chinrest, many flash-less images are taken in rapid succession without touching the eye.
What is Corneal Topography used for?
Corneal topography is used confirm the degree of astigmatism prior to cataract surgery. This allows accurate selection of the most appropriate toric intraocular lens implant to help reduce astigmatism in patients undergoing cataract surgery.
Corneal topography is an essential tool in the diagnosis and management of corneal conditions such as keratoconus, Fuchs’ endothelial corneal dystrophy, corneal scars and pterygium.
What are some examples of our Corneal Topographers?
- Oculus Pentacam
The Pentacam is a rotating Scheimpflug camera that measures elevation points and creates a 3D map of the entire cornea including the front and back surfaces. It also creates images of the entire anterior segment of the eye.
- Zeiss Atlas
The Atlas is a Placido disc-based corneal topographer that maps the front surface of the cornea.
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