Pre-operative simulation of post-operative multifocal vision

Viñas, María; Aissati, Sara; Romero, Mercedes; Benedi-Garcia, Clara; Garzón, Nuria; Poyales, Francisco; Dorronsoro, Carlos; Marcos, Susana

doi:10.1364/boe.10.005801

Cited by 28 publications

(21 citation statements)

References 41 publications

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“…Measurements were performed in a custom-developed polychromatic AO system at the Visual Optics and Biophotonics Lab (Institute of Optics, Spanish National Research Council, IO-CSIC, Madrid, Spain), described in detail in previous publications. 26 , 29 For the purposes of this study, the visual stimulus was seen through two different active optical elements: (1) a reflective deformable mirror (DM), used in this study to correct the aberrations of the optical system; and (2) a simultaneous vision simulator (Sim+Vis Technology), based on temporal multiplexing of an optotunable lens, used to simulate the MCL design.…”

Section: Methodsmentioning

confidence: 99%

“…1.4 ). 20 , 24 – 26 Once the temporal waves were obtained, we used a high-speed dynamic focimeter 25 , 25 provided with a high-speed camera (3823 fps), to measure the optotunable lens response with and without the correction of dynamic effects ( Fig. 1.5 ) and to evaluate the TF SimVis- simulated lens performance.…”

Section: Methodsmentioning

confidence: 99%

“…These features have allowed for the concept to be translated into a binocular, wearable clinical device (SimVis Gekko). Previous studies have proven the capability of the SimVis technology to replicate vision with real refractive segmented IOLs and trifocal diffractive IOLs 20 20 and a high correspondence between preoperative vision with SimVis Gekko and postoperative vision with the real implanted multifocal IOL 26 . 26 …”

Section: Introductionmentioning

confidence: 99%

“…Previous studies have proven the capability of the SimVis technology to replicate vision with real refractive segmented IOLs and trifocal diffractive IOLs 20 and a high correspondence between preoperative vision with SimVis Gekko and postoperative vision with the real implanted multifocal IOL. 26 The ability of SimVis technology to allow subjects to noninvasively experience multifocal vision is highly useful before intraocular lens implantation, given that a lack of tolerance to implanted multifocal IOLs may require surgical explantation. 27 It is also useful for the patient and clinician to be able to compare across different multifocal options as a tool to guide decision.…”

Section: Introductionmentioning

confidence: 99%

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Optical and Visual Quality With Physical and Visually Simulated Presbyopic Multifocal Contact Lenses

Viñas

Aissati

Gonzalez-Ramos

et al. 2020

Trans. Vis. Sci. Tech.

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As multifocal contact lenses (MCLs) expand as a solution for presbyopia correction, a better understanding of their optical and visual performance becomes essential. Also, providing subjects with the experience of multifocal vision before contact lens fitting becomes critical, both to systematically test different multifocal designs and to optimize selection in the clinic. In this study, we evaluated the ability of a simultaneous vision visual simulator (SimVis) to represent MCLs. Methods: Through focus (TF) optical and visual quality with a center-near aspheric MCL (low, medium and high near adds) were measured using a multichannel polychromatic Adaptive Optics visual simulator equipped with double-pass, SimVis (temporal multiplexing), and psychophysical channels to allow measurements on-bench and in vivo. On bench TF optical quality of SimVis-simulated MCLs was obtained from double-pass (DP) images and images of an E-stimulus using artificial eyes. Ten presbyopic subjects were fitted with the MCL. Visual acuity (VA) and DP retinal images were measured TF in a 4.00 D range with the MCL on eye, and through SimVis simulations of the same MCLs on the same subjects. Results: TF optical (on bench and in vivo) and visual (in vivo) quality measurements captured the expected broadening of the curves with increasing add. Root mean square difference between real and SimVis-simulated lens was 0.031/0.025 (low add), 0.025/0.015 (medium add), 0.019/0.011 (high add), for TF DP and TF LogMAR VA, respectively. A shape similarity metric shows high statistical values (lag κ = 0), rho = 0.811/0.895 (low add), 0.792/0.944 (medium add), and 0.861/0.915 (high add) for TF DP/LogMAR VA, respectively. Conclusions: MCLs theoretically and effectively expand the depth of focus. A novel simulator, SimVis, captured the through-focus optical and visual performance of the MCL in most of the subjects. Visual simulators allow subjects to experience vision with multifocal lenses prior to testing them on-eye. Translational Relevance: Simultaneous visual simulators allow subjects to experience multifocal vision non-invasively. We demonstrated equivalency between real multifocal contact lenses and SimVis-simulated lenses. The results suggest that SimVis is a suitable technique to aid selection of presbyopic corrections in the contactology practice.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical and Visual Quality With Physical and Visually Simulated Presbyopic Multifocal Contact Lenses

Viñas

Aissati

Gonzalez-Ramos

et al. 2020

Trans. Vis. Sci. Tech.

Self Cite

View full text Add to dashboard Cite

show abstract

“…An interesting question is whether this simulation correspond with the vision obtained through the physically manufactured real IOL tested on the same eye [7]. Comparison, on bench and in patients, in the same multi-channel AO visual simulator, of through focus (TF) optical and visual quality produced by real multifocal IOLs (M-IOLs) and their the pre-surgical simulation of presbyopic corrections [8], where in vivo pre-operative simulated TF visual performance is compared with post-operative vision after implantation of a M-IOL in patients [9]. The comparison is made in patients that are implanted with diffractive trifocal lenses (the FineVision POD F, by PhysIOL), using two different simulating technologies (SLM and SimVis technology) and 2 different simulation platforms, an AO based visual simulator and the clinical simulator.…”

Section: From the Lab To The Clinic: Predicting Post-surgery Visionmentioning

confidence: 99%