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Pachymetry
Pachymetry is a test used to measure the thickness of the cornea, the transparent part of the eye that covers the pupil and lens. This parameter is important in the diagnosis of eye diseases, such as glaucoma. Pachymetry is generally performed together with measurement of intraocular pressure.
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Pachymetry - what does the examination look like?
During pachymetry, the ophthalmologist uses a special device, called a pachymeter. Depending on the type of pachymeter, the examination can be carried out using two methods:
- ultrasonic - non-contact;
- optical - tactile, using a light beam.
Regardless of the method, the examination is simple, painless and non-invasive. It lasts only a few minutes. In the case of pachymetry using the optical method, drops that anesthetize the corneal surface are used. This avoids the unpleasant sensations associated with contact between the diagnostic device and the eye.
After the test is completed, the patient can immediately return to daily activities (including, for example, driving).
Interpretation of pachymetry results
The pachymetry results are available immediately. They are interpreted by an ophthalmologist based on standards, taking into account the patient's race and time of day. Corneal thickness is determined in micrometers (µm).
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