In vitro optical performance of multifocal and extended depth-of-focus intraocular lenses in spherical aberration conditions

Park, Soo-Hyun; Kim, Myoung Joon; Kim, Ki Hean

doi:10.1097/j.jcrs.0000000000000869

Cited by 3 publications

(3 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The decision to target such values was based on the mean ocular and anterior corneal wavefront profile of normal eyes, as well as previous studies assessing the change in depth of focus with SA modulation. 8,9,[13][14][15][16] Corneal aberration profiles of all eyes were similar at baseline, mirroring the mean population corneal SA of +0.28 mm (Table 1). 13 Baseline ocular SAs, measured with a Hartmann-Shack sensor, are less reliable in multifocal diffractive IOLs (EDOF and continuous range-of-vision IOLs).…”

Section: Discussionmentioning

confidence: 65%

“…Our results were in accordance with previous optical bench studies showing that the change in depth of focus varied according to IOL models. 16,18 In general, we found that the monofocal IOLs with zero SA were the most sensitive to SA modulation.…”

Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 99%

See 2 more Smart Citations

Effect of spherical aberration on visual acuity and depth of focus in pseudophakic eyes

Kozhaya,

Kenny,

Esfandiari

et al. 2024

J Cataract Refract Surg

View full text Add to dashboard Cite

Purpose: Assess the performances of four intraocular lenses (IOLs) in various spherical aberration (SA) conditions, using the VAO adaptive optics simulator (Voptica S.L.). Setting: Cullen Eye Institute, Baylor College of Medicine, Houston, TX. Design: Prospective case series. Methods: Distance-corrected visual acuities at distance (CDVA), intermediate (DCIVA), and near (DCNVA) were measured in 42 dilated pseudophakic eyes at baseline and with ocular SA ranging from –0.4 to +0.4 μm in increments of 0.2 μm (6.0-mm pupil). Four IOL types were assessed: monofocal IOLs with zero-SA, enhanced-monofocal, extended depth-of-focus (EDoF), and continuous-range-of-vision. Results: Compared to SA = 0μm, significant changes (all P<.05) were: 1) zero-SA monofocal IOLs’ DCNVA at high contrast improved by 0.13 logMAR with SA = – 0.4 μm and worsened by 0.09 and 0.10 logMAR with SA = +0.2 and +0.4 μm, respectively. DCNVA at low contrast worsened by 0.09 logMAR with SA = +0.4 μm; and 2) with SA = –0.4 μm, the enhanced monofocal IOL lost 0.06 logMAR of CDVA at high contrast and gained 0.09 logMAR of DCNVA at low contrast. There were no significant changes from SA = 0 μm for EDoF and continuous-range-of-vision IOLs. Conclusions: Zero-SA and EDoF IOLs were the most and least sensitive to SA modulation, respectively. In perfect optical systems where all the optical elements are aligned, induction of targeted amounts of negative SA improved the depth of focus of some IOL types. We found no benefit with positive SA.

show abstract

Section: Discussionmentioning

confidence: 65%

Section: Discussionmentioning

confidence: 74%

See 1 more Smart Citation

Effect of spherical aberration on visual acuity and depth of focus in pseudophakic eyes

Kozhaya,

Kenny,

Esfandiari

et al. 2024

J Cataract Refract Surg

View full text Add to dashboard Cite

show abstract

Tolerance to decentration of biaspheric intraocular lenses with refractive phase-ring extended depth of focus and diffractive trifocal designs

Cerviño,

Esteve-Taboada,

Chiu

et al. 2024

Graefes Arch Clin Exp Ophthalmol

View full text Add to dashboard Cite

Purpose This study aimed to investigate the in vitro tolerance to decentration of biaspheric intraocular lens (IOLs) with refractive phase-ring extended depth-of-focus (EDOF) and diffractive trifocal designs. Methods This experimental study was carried out at the Department of Optics and Optometry and Vision Science, University of Valencia, Spain. The modulation transfer function (MTF) of the ETLIO130C EDOF and the TFLIO130C trifocal IOLs (AST Products Inc., Billerica, MA, USA) were determined at different levels of decentration for a given wavelength and pupil diameter using the PMTF optical bench (Lambda-X Ophthalmics, Nivelles, Belgium). The modulation transfer function (MTF) curves, the through-focus MTF curves, and the Strehl ratios were measured at 3-mm pupil aperture for 0.25-, 0.50- and 0.75-mm decentration. Results The optical design of the trifocal TFLIO130C IOL is robust to small decentrations, with virtually no change in MTF response for 0.25 mm decentration. For greater decentration levels, the MTF response is slightly reduced with increasing decentration. The ETLIO130C EDOF design is robust to decentration, as the MTF response is only minimally affected when increasing the decentration up to 0.75 mm. Conclusions MTF responses are slightly reduced with greater levels of decentration, but the range of focus provided by both trifocal and EDOF designs are preserved. The effects for average levels of decentration reported in the literature are minimum for both IOL designs.

show abstract

Vehicle Headlight Halo Simulation of Presbyopia-Correcting Intraocular Lenses

Kohnen,

Nouri,

Carson

2023

Trans. Vis. Sci. Tech.

View full text Add to dashboard Cite

In vitro optical performance of multifocal and extended depth-of-focus intraocular lenses in spherical aberration conditions

Abstract: To evaluate and compare the optical performances of 4 different types of intraocular lenses (IOLs) in various spherical aberration (SA) conditions.

Cited by 3 publications

References 23 publications

Effect of spherical aberration on visual acuity and depth of focus in pseudophakic eyes

Effect of spherical aberration on visual acuity and depth of focus in pseudophakic eyes

Tolerance to decentration of biaspheric intraocular lenses with refractive phase-ring extended depth of focus and diffractive trifocal designs

Vehicle Headlight Halo Simulation of Presbyopia-Correcting Intraocular Lenses

Contact Info

Product

Resources

About