Background: In the context of laser keratorefractive surgery, performing corneal topography as part of the preoperative evaluation is of utmost importance. This procedure helps to evaluate the cornea’s shape, determine the curvature’s radii, and assess corneal thickness. Identifying any abnormal corneal topography is critical since it is the most significant risk factor for corneal ectasia. Objective: The primary objective of this article is to provide a comprehensive analysis of the advantages of corneal topography, with a particular focus on the Schwind Peramis system. Methods: This article was based on a literature review and Internet search through scientific databases such as PubMed, Scopus, Web of Science, and Google Scholar. Results: Corneal topographers are medical devices that measure the corneal curvature. They have evolved from the Placido disc method to the Galilei®, Sirius®, and Peramis®, which are sophisticated systems that synergize the strengths of topographers and tomographers. The Schwind Peramis device accurately identifies ocular wavefront aberrations by integrating a high-resolution topography and an aberrometer. It also features a pupillography function that captures dynamic and static pupil diameter and an integrated densitometry image function that assesses potential cataracts and opacities. Corneal imaging devices are a valuable tool for ophthalmologists specializing in keratoconus screening. Conclusion: Advanced corneal imaging is critical for refractive surgery success. Schwind Peramis is precise in measuring complicated cases and analyzing data. It allows surgeons to create individualized treatment plans for better visual outcomes and patient satisfaction.
Key words: corneal topography, keratoconus, Placido disc, Schwind Peramis.
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