What Is Pachymetry?

Mr Glenn Carp – “Pachymetry is a technique where we measure the corneal thickness.  This can be done in a multitude of ways ranging from handheld ultrasound probes to measured focal points of corneal thickness as well as various scanning technologies, both with topographies, as well as what we have here at the London Vision Clinic; an Artemis very high frequency ultrasound guided pachymetry measurement and the idea of all of this to measure the patient’s preoperative pachymetry corneal thickness to ascertain if there is sufficient tissue to be able to perform a full correction of their refractive error.”

Pachymetry Explained Further…

A pachymeter is a hand-held device used to measure the depth of the thinnest point of your cornea. Along with front and back surface topography, the thickness of your cornea is one of the most important safety factors in Laser Refractive Surgery. Your surgeon should review these measurements, topography and pachymetry, to make surgery as safe as possible.

Using a pachymeter together with a topography device provides very accurate data, and ensures that the thickness of these areas is within acceptable safety limits. Ask your surgeon what kind of pachymeter they are using – the 50MHz model gives more detailed information than a 20-30MHz device.


Mr Glenn Carp explains the meaning of pachymetry.

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What Is Pachymetry? [Video]

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