CORNEAL TOPOGRAPHY

essential for Treating astigmatism

Image result for pentacam The Pentacam takes images of your cornea by using a rotating camera, thus producing a 3D photo of the interior part of your eye. When evaluating patients for LASIK, one of the key pieces of data is elevation analysis at the center of the cornea, and with this rotating camera, that measurement is very precise. These photos take less than five seconds per eye and during this short period, up to 25,000 elevation points on your cornea are measured!

Abnormal Astigmatism

Topographic mapping of an irregular cornea B

Example of irregular astigmatism

Topographic mapping of a normal cornea

Example of regular astigmatism/p>

AAstigmatism can be regular and irregular. Regular Astigmatism means the Corneal is shaped like the surface of a football and has a simple ellipsoid shape This type of astigmatism is cully correctable with glasses and toric intraocular lenses.

Irregular astigmatism means the corneal has a more complex geometry and vision may not be totally clear even with the correct spectacles or lens implant but only with rigid contact lens floating on the cornea giving a new refractive surface. Such astigmatism is incompatible with presbyopia correcting multifocal implants

The Pentacam images the anterior segment of the eye by a rotating Scheimpflug camera measurement. This rotating process supplies pictures in three dimensions. The center of the cornea is measured very precisely because of this rotational imaging process. The measurement process lasts less than two seconds, and minute eye movements are captured and corrected simultaneously. By measuring 25,000 true elevation points, precise representation, repeatability and analysis are guaranteed.o:p>

TThe Pentacam provides 3-dimensional chamber analysis of the complete anterior segment of the eye, corneal topography of both the front and the back of the cornea, thickness measurements across the entire diameter of cornea. It also can provide cataract analysis and clearly detect corneal disorders such as Keratoconus, where laser vision correction is sometimes not appropriate.

Pentacam

The Gold Standard in anterior eye segment tomography

Since its introduction in 2002, the OCULUS Pentacam® has proven itself indispensable and has come to represent the "Gold Standard" worldwide. Here’s why: Contact-free Pentacam® measurement provides the basis for precise and reliable diagnostics and successful treatment of the anterior segment

Image result for pentacam

Pre- and Postoperative Screening

Pentacam® displays provide targeted information: Scheimpflug imaging, elevation data, topography and pachymetry combine to give a comprehensive picture.

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