| Título: | Comparing surgically induced astigmatism calculated by means of simulated keratometry versus total corneal refractive power |
| Autores: | Garzón Jiménez, Nuria ; Rodríguez Vallejo, Manuel ; Carmona González, David ; Calvo Sanz, Jorge A. ; Poyales Galán, Francisco ; Palomino Bautista, Carlos ; Zato Gómez de Liaño, Miguel Á ; Fernández, Joaquín |
| Tipo de documento: | texto impreso |
| Editorial: | Wichtig, 2018 |
| Dimensiones: | application/pdf |
| Nota general: | info:eu-repo/semantics/openAccess |
| Idiomas: | |
| Palabras clave: | Estado = No publicado , Materia = Ciencias Biomédicas: Medicina: Cirugía , Materia = Ciencias Biomédicas: Medicina: Oftalmología , Materia = Ciencias Biomédicas: Óptica y optometría: Optometría , Tipo = Artículo |
| Resumen: |
Purpose: To evaluate surgically induced astigmatism as computed by means of either simulated keratometry (KSIM) or total corneal refractive power (TCRP) after temporal incisions. Methods: Prospective observational study including 36 right eyes undergoing cataract surgery. Astigmatism was measured preoperatively during the 3-month follow-up period using Pentacam. Surgically induced astigmatism was computed considering anterior corneal surface astigmatism at 3mm with KSIM and considering both corneal surfaces with TCRP from 1 to 8mm (TCRP3 for 3mm). The eyes under study were divided into two balanced groups: LOW with KSIM astigmatism Results: Mean surgically induced astigmatism was higher in the HIGH group (0.31D @ 102°) than in the LOW group (0.04 D @ 16°). The temporal incision resulted in a steepening in the HIGH group of 0.15 D @ 90°, as estimated with KSIM, versus 0.28 D @ 90° with TCRP3, but no significant differences were found for the steepening in the LOW group or for the torque in either group. Differences between KSIM- and TCRP3-based surgically induced astigmatism values were negligible in LOW group. Conclusion: Surgically induced astigmatism was considerably higher in the high-astigmatism group and its value was underestimated with the KSIM approach. Eyes having low astigmatism should not be included for computing the surgically induced astigmatism because steepening would be underestimated. |
| En línea: | https://eprints.ucm.es/id/eprint/46775/1/Garzon%2C%20Nuria_2017-EJO757666-Eprint.pdf |
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