Astigmatismo inducido en pacientes operados de facoemulsificación con microincisión + lente intraocular + trabeculectomía

Objetivo: Métodos: Resultados: Conclusiones: Objective: To determine the corneal astigmatism induced in patients after phacoemulsification with intraocular lens implantation and trabeculectomy. Keratometric changes were measured with an automated keratometer, patients were evaluated for a period of one year follow-up. Methods: Observational retrospective study. Changes in keratometry were evaluated at 6 months and 1 year using scalar and vector analysis. All surgeries were performed by the same expert surgeon. Results: 28 patients were included in this study, 4 (14.3%) men and 24 (85.7%) women. The mean age was 75.6 years (±6.8). Preoperative evaluation of corneal astigmatism revealed that 64.3% against-therule, 28.6% of patients had a with-the-rule, and 7.1% had an oblique astigmatism. In the scalar analysis, surgical induced astigmatism at 6 months was -0.437 diopters (D) (±0.35) and -0.434 D at 1 year (±0.43). Both at 6 months and 1 year, the maximum value of induced astigmatism was -1.5 D. Through vector analysis, the average of the surgically induced astigmatism was -0.83 D (±0.73) and the axis was 81.07° at 6 months and -0.86 D (±0.71) and the axis was 89.3° at 1 year. The maximum values of induced astigmatism were -2.83 and -2.26 at 6 months and 1 year respectively. Conclusions: The changes detected in astigmatism following microincisional phacoemulsification and trabeculectomy correspond to about one diopter keratometric change the direction of the incisión trabeculectomy.