2026-06-08T09:49:55Zhttps://docta.ucm.es/rest/oai/request
oai:docta.ucm.es:20.500.14352/125512023-08-26T23:59:44Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense author Alba Bueno, Francisco author Garzón Jiménez, Nuria author Vega Lerin, Fidel author Poyales Galán, Francisco author Millán García Varela, María Sagrario 2023-06-17T12:35:01Z 2023-06-17T12:35:01Z 2018-01 0271-3683; 1460-2202 (e) 10.1080/02713683.2017.1379541 https://hdl.handle.net/20.500.14352/12551 https://doi.org/10.1080/02713683.2017.1379541 https://www.tandfonline.com/toc/icey20/current Purpose: To examine and assess the halos generated in distance vision by multifocal intraocular lenses (IOLs) using both in vitro objective and in vivo subjective methods. Setting: The objective method was carried out in the optics laboratory of the Applied Optics and Image Processing Group (Universitat Politècnica de Catalunya -Barcelona). The psychophysical and subjective methods were carried out in the Instituto de Oftalmología Avanzada Madrid Innova Ocular. Design: Optical bench results and prospective evaluation of consecutive cases. Methods: The IOLs examined were TECNIS® one-piece bifocals with addition powers of +4.00 D, +3.25 D, and +2.75 D and the trifocals AT-LISA-tri® and FineVision®. In the objective assessment, we examined halos around the far focus images of a pinhole formed by each IOL in an optical bench. For the in vivo study, we recruited 100 patients who had been bilaterally implanted one month earlier with the IOLs under study. Participants were subjected to psychophysical halometry (Halo v1.0) on the eye with better, distance-corrected, visual acuity and were required to subjectively grade halos by responding to the question “How much do halos bother you?” Results: The objective method revealed that the halo size increased with addition power and that the two trifocals gave rise to a double-halo pattern. Scores in the halometry also indicated a direct relationship between the halo size and addition power. The subjective results indicated fewer complaints about halos associated with the trifocal than bifocal IOLs. Conclusions: The addition power of the tested IOLs affected both laboratory-measured and patientperceived halos. Trifocal lenses generated fewer complaints about halos. Precise: Multifocal intraocular lenses (MIOLs) give rise to halos observed by patients under conditions of dim lighting. This study compares laboratory characterized halos generated by five MIOLs with patientperceived halos. eng Atribución-NoComercial-SinDerivadas 3.0 España Patient-Perceived and Laboratory-Measured Halos Associated with Diffractive Bifocal and Trifoca Intraocular Lenses journal article URL https://docta.ucm.es/bitstreams/8c5ffe06-8674-4082-b67b-64b38052ad7a/download File MD5 90258091e123d9bc07a3c1f3b00a813e 1216268 application/pdf Patient Perceived and Laboratory Measured Halos Associated with Diffractive Bifocal and Trifocal Intraocular Lenses.pdf URL https://docta.ucm.es/bitstreams/54e0ec5b-5e35-4800-b5fe-faf6d6ea1d74/download File MD5 91145f367fdfd07eb87fcc6f30853c2b 869558 application/pdf ICEY_A_1379541_revFidel_revMaria.pdf