Optical tolerance to rotation of trifocal toric intraocular lenses as a function of the cylinder power

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dc.contributor.authorRuiz Alcocer, Javier
dc.contributor.authorLorente Velázquez, Amalia
dc.contributor.authorGracia, Pablo, de
dc.date.accessioned2023-06-16T15:19:12Z
dc.date.available2023-06-16T15:19:12Z
dc.date.issued2020-05-27
dc.description.abstractBackground: The aim was to assess the impact of 5- and 10-degree rotations in the optical quality of a trifocal toric intraocular lens with different amounts of cylinder. Methods: Two Physiol Toric intraocular lenses with 1.5 and 3.0 D of cylinder were analysed in three different positions: centred, 5 and 10 degrees rotated. The optical quality of the intraocular lenses was evaluated with the PMTF optical bench through specific perpendicular targets. The analysis was performed by the through-focus modulation transfer function curves and the modulation transfer function corresponding to distance vision (0 D of vergence). Results: For a centred situation, the through-focus modulation transfer function curves of both intraocular lenses showed the classical three peaks corresponding to the powers of the two principal meridians of the intraocular lenses. When 5 and 10 degrees of rotation were induced, the three peaks were attenuated in both cases. The case with the intraocular lens with 3.0 D of cylinder and 10 degrees of rotation showed the worst optical quality and a significant loss of trifocality. The modulation transfer function values obtained for distance vision also showed the worst optical quality for the intraocular lens with 3.0 D of cylinder and 10 degrees of rotation. Conclusion: Rotations over 5 degrees decreased the optical quality of trifocal toric intraocular lenses, being this reduction moderate from 5 to 10 degrees for low levels of cylinder (≤1.5 D). For mid-high levels of cylinder (≥3.0 D), rotations over 5 degrees cause a significant loss of optical quality at all object distances.
dc.description.departmentDepto. de Optometría y Visión
dc.description.facultyFac. de Óptica y Optometría
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/60972
dc.identifier.doi10.1177/1120672120926845
dc.identifier.issn1120-6721
dc.identifier.officialurlhttps://doi.org/10.1177/1120672120926845
dc.identifier.relatedurlhttps://journals.sagepub.com/doi/abs/10.1177/1120672120926845
dc.identifier.urihttps://hdl.handle.net/20.500.14352/6333
dc.journal.titleEuropean Journal of Ophthalmology
dc.language.isoeng
dc.publisherSage Publishing
dc.rights.accessRightsopen access
dc.subject.cdu617.741-004.1-089
dc.subject.cdu681.7.066
dc.subject.cdu681.73
dc.subject.keywordCorneal topography
dc.subject.keywordIntraoperative complications of cataract surgery
dc.subject.keywordIntraocular lens calculation for primary/secondary intraocular lens
dc.subject.keywordIntraocular lenses
dc.subject.keywordLens/cataract
dc.subject.keywordOptics/refraction/instruments
dc.subject.ucmCirugía
dc.subject.ucmOptometría
dc.subject.ucmÓptica oftálmica
dc.subject.unesco3213 Cirugía
dc.subject.unesco2209.15 Optometría
dc.titleOptical tolerance to rotation of trifocal toric intraocular lenses as a function of the cylinder power
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublicatione7b1d7df-7032-4d5e-b1c5-ac67a61a8b1c
relation.isAuthorOfPublicationf7b511b2-3096-4762-909a-330bed4c0489
relation.isAuthorOfPublication.latestForDiscoverye7b1d7df-7032-4d5e-b1c5-ac67a61a8b1c
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