RT Journal Article
T1 Equivalence of two optical quality metrics to predict visual acuity of multifocal pseudophakic patients
A1 Armengol Cebrian, Jesús
A1 Garzón Jiménez, Nuria
A1 Vega Lerin, Fidel
A1 Altemir Gómez, Irene
A1 Millán García Varela, María Sagrario
AB This article studies the relationship between two metrics, the area under the modulation transfer function (MTFa) and the energy efficiency (EE), and their  ability to predict the visual quality of patients implanted with multifocal  intraocular lenses (IOLs). The optical quality of IOLs is assessed in vitro using two metrics, the MTFa  and EE. We measured them for three different multifocal IOLs with parabolic phase  profile using image formation, through-focus (TF) scanning, three R, G, B wavelengths,  and two pupils. We analyzed the correlation between MTFa and EE. In parallel, clinical  defocus curves of visual acuity (VA) were measured and averaged from sets of patients  implanted with the same IOLs. An excellent linear correlation was found between the  MTFa and EE for the considered IOLs, wavelengths and pupils (R2 > 0.9). We computed the  polychromatic TF-MTFa, TF-EE, and derived mathematical relationships between each  metrics and clinical average VA. MTFa and EE proved to be equivalent metrics to characterize the optical quality of the studied multifocal IOLs and also in terms of  clinical VA predictability.
PB OSA Publishing
SN 2156-7085
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/6151
UL https://hdl.handle.net/20.500.14352/6151
LA eng
NO Received 21 Jan 2020; revised 1 Apr 2020; accepted 3 Apr 2020
NO Ministerio de Economía y Competitividad de España (MINECO)
DS Docta Complutense
RD 1 may 2024