Corneal changes induced by limbal relaxing incision and opposite clear corneal incision

Besides implanting a toric IOL for reducing astigmatism, various other surgical techniques can be applied, for example setting an opposite clear corneal incision (OCCI) or a limbal relaxing incision (LRI). These methods of astigmatism correction are commonly used, but the influence on corneal morphology and function is still in question. In this study viscoelastic properties of cornea and their influence on topographic changes after different astigmatism-reducing incisional techniques will be assessed using dual rotating Scheimpflug imaging with a Placido disc and an Ocular Response Analyzer.