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Wavefront aberrometry measurements are used diagnostically, to determine causes of visual disturbances, and are also used to program ablations in wavefront-guided procedures, whether used for first-time laser eye surgery patients or for therapeutic retreatments.
Aberrometry is performed with an aberrometer. There are many aberrometers available. Generally speaking each manufacturer of an excimer laser has its own aberrometer.
There are three different general types of wavefront aberrometry: the Hartmann-Shack principle, the Tscherning principle, and ray tracing. |
