OCT- versus Scheimpflug-based Total Corneal Power Measurements Changes in Myopic Astigmatic SMILE Procedures
| Autor: | Mehdi Shajari, Martin Bechmann, Rainer Wiltfang, Roman Lischke, Siegfried G. Priglinger, Nikolaus Feucht, Daniel Kook, Wolfgang J. Mayer |
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| Rok vydání: | 2021 |
| Předmět: |
Adult
Male medicine.medical_specialty Corneal Surgery Laser Scheimpflug principle Visual Acuity Astigmatism Refraction Ocular law.invention Myopic astigmatism Cornea Cellular and Molecular Neuroscience High astigmatism Young Adult law Ophthalmology Myopia Medicine Humans In patient Postoperative Period Prospective Studies Keratometer business.industry Corneal Topography Middle Aged medicine.disease Sensory Systems Female Difference vector business Corneal astigmatism Tomography Optical Coherence Follow-Up Studies |
| Zdroj: | Current eye research. 47(1) |
| ISSN: | 1460-2202 |
| Popis: | PURPOSE To evaluate the value of total keratometry (TK) to estimate corneal power in eyes that underwent SMILE for treatment of myopia or myopic astigmatism in subgroups of low and high astigmatism. METHODS The difference between preoperative and postoperative measurements of corneal power (ΔTCRP, ΔTK) was compared with the surgically induced refractive change at the corneal plane (ΔSEco) by Pearson correlation. Vector analysis of TCRP- and TK-derived astigmatism was performed to evaluate the corneal astigmatism. Single-angle plots were generated with the AstigMATIC tool for standard astigmatism vector analysis. RESULTS Paired t-test revealed statistically significant differences in preoperative (p = .02) and postoperative (p = .0455) measurements between TK and TCRP in the group of high-level astigmatism and the postoperative low astigmatism group (p |
| Databáze: | OpenAIRE |
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