2026-10-02T16:00:05Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/130892023-08-27T09:15:36Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Carpena Torres, Carlos
author
López Alonso, José Manuel
author
Burgos Martínez, Mercedes
author
Carracedo Rodríguez, Juan Gonzalo
author
Carballo Álvarez, Jesús
2023-06-17T13:19:40Z
2023-06-17T13:19:40Z
2018-11
1542-233X
10.1097/ICL.0000000000000485
https://hdl.handle.net/20.500.14352/13089
http://dx.doi.org/10.1097/ICL.0000000000000485
https://insights.ovid.com/pubmed?pmid=29420325
PURPOSE: To analyze the variation in vertical coma and the rest of ocular aberrations before and after fitting prismatic soft contact lenses (PSCL). METHODS: Thirty-seven eyes of 20 healthy subjects (24.30±2.03 years) were evaluated to analyze the variation in ocular wavefront aberrations before and after fitting PSCL of different base-down prism values (1.0, 1.5, and 2.0 prism diopters [PD]), designed to study its influence in the compensation of vertical coma aberration. A Hartmann-Shack sensor with a wavelength of 780 nm was used, considering a pupil size of 3 mm. In addition, the influence of PSCL in visual function under photopic conditions in terms of high-contrast visual acuity and contrast sensitivity was evaluated. RESULTS: There was statistically significant differences (P<0.05) in ocular aberrations from first to seventh order after fitting PSCL, but only the differences in vertical tilt, horizontal tilt, defocus, vertical astigmatism, and vertical coma were clinically relevant (Strehl ratio <0.8). The mean of vertical coma (μm) was 0.022±0.030 for control, 0.045±0.064 for 1.0 PD (P=0.645), 0.048±0.053 for 1.5 PD (P=0.037), and 0.074±0.047 for 2.0 PD (P<0.001). The changes in visual function under photopic conditions were not clinically relevant. CONCLUSIONS: PSCL induce a magnitude of vertical coma aberration directly proportional to prism value without affecting the rest of ocular high-order aberrations.
eng
Variation of Coma Aberration With Prismatic Soft Contact Lenses
journal article
URL
https://docta.ucm.es/bitstreams/0cac5344-af07-4508-b85a-93ea3b872f84/download
File
MD5
a737cf8b31f08b58dadc9f1360200ee9
430530
application/pdf
Carracedo_00140068-201811002-00035.pdf