RT Journal Article
T1 Visual simulations of presbyopic corrections through cataract opacification
A1 Barcala Gosende, Xoana
A1 Zaytouny, Amal
A1 Rego Lorca, Daniela
A1 Sanchez Quiros, Julia
A1 Sánchez Jean, Rubén
A1 Martínez De La Casa Fernández-Borrella, José María
A1 Dorronsoro Díaz, Carlos
A1 Marcos Celestino, Susana
AB Purpose: To study the viability of visual simulation of presbyopic correction in patients with cataract and the effect and impact of the cataract on the perceived visual quality of the different simulated presbyopic corrections preoperatively and postoperatively.Setting: San Carlos Clinical Hospital, Madrid, Spain.Design: Observational, noninterventional, pilot study, early feasibility of the device being studied.Methods: Cataract patients were tested preoperatively (n = 24) and postoperatively (n = 15) after bilateral implantation of monofocal intraocular lenses (IOLs). The degree of cataract was evaluated objectively with the objective scatter index (OSI). Visual acuity (VA) and perceived visual quality of natural scene images (Multifocal Acceptance Score) were measured before and after cataract surgery at far (4 m), intermediate (64 cm) and near distance (40 cm) with 4 binocular presbyopic corrections (single vision, bifocal, monovision and modified-monovision) simulated with a binocular Simultaneous Vision simulator based on temporal multiplexing.Results: VA was significantly correlated with OSI (r = −0.71, P < .0005), although the visual degradation at far for each correction was constant and not correlated with OSI. The visual benefit at near distance provided by the presbyopic correction was noticeable (23.3% ± 27.6% across corrections) for OSI <5. The individual perceptual scores were highly correlated preoperatively vs postoperatively (r = 0.64, P < .0005) for all corrections and distances.Conclusions: Visual simulations of IOLs are an excellent tool to explore prospective postoperative vision. The high correlation in the perceptual scores pre- and post-cataract surgery demonstrates that SimVis Gekko can be used in cataractous patients to guide the selection of the optimal correction for a patient.
PB Wolter Kluwer
SN 0886-3350
YR 2023
FD 2023-01-01
LK https://hdl.handle.net/20.500.14352/73172
UL https://hdl.handle.net/20.500.14352/73172
LA eng
NO Barcala Gosende, X., Zaytouny, A., Rego Lorca, D. et al. «Visual Simulations of Presbyopic Corrections through Cataract Opacification». Journal of Cataract and Refractive Surgery, vol. 49, n.o 1, enero de 2023, pp. 34-43. DOI.org (Crossref), https://doi.org/10.1097/j.jcrs.0000000000001040.
NO Comunidad de Madrid
NO Gobierno de España
NO Instituto de Salud Carlos III 
DS Docta Complutense
RD 21 abr 2025