To date, the Schwind AMARIS laser is the only machine that is able to perform the no-touch TransPRK in a single step.
With any other laser machines in the market, at least 2 or 3 laser steps have to be performed. First, the epithelium is ablated, then the stroma is ablated to treat the refraction or ‘power’, followed by a third laser step to correct the change in power due to the first laser step. This was not only time consuming, but caused uneven epithelium and inaccurate results.
Corneal Topography Machine
The Schwind Sirius corneal topography machine is used to accurately scan the cornea curvature and thickness to determine if your eyes are suitable for TransPRK.