Objective cataract grading methods and expected contrast sensitivity reestablishment with multifocal intraocular lenses

Fernández, Joaquín; Burguera, Noemí; Rocha‐de‐Lossada, Carlos; Rachwani-Anil, Rahul; Rodríguez‐Vallejo, Manuel

doi:10.1007/s10792-023-02680-8

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…In fact, even though the inclusion criteria was established at 55 years old in the protocol, the oldest patient in our sample was 51 years old, with a reasonable clear lens, and binocularly achieving 1 logCS in the preoperative stage at far distance, and 0.9 logCS at 0 D and −2.5 D at the 6-month visit, which means a better CS at near in comparison to that achieved with MIOLs [ 13 ]. Thus, preoperative screening considering the cut-off criteria for CS reestablishment with MIOLs is of great importance when taking the decision for laser vision correction with micro-monovision or refractive lens exchange [ 31 ]. The latter, with the consensus of the patient after explanation of the advantages and drawbacks of each procedure, will determine the best procedure for each patient.…”

Section: Discussionmentioning

confidence: 99%

Effectiveness of SMILE Combined with Micro-Monovision in Presbyopic Patients: A Pilot Study

Fernández¹,

Alonso-Aliste

Burguera³

et al. 2023

Life

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Binocular summation along all defocus range after a micro-monovision procedure has scarcely been studied. The aim of this pilot study was to evaluate the efficacy of SMILE combined with different levels of micro-monovision in presbyopic patients and to assess the binocular summation effect on contrast sensitivity defocus curves (CSDC) at the 6-month follow-up. Efficacy was assessed on the basis of visual acuity (VA) and stereopsis at far, intermediate, and near distances. Patient-reported outcomes (PROs) and binocular CSDC were also evaluated. Six patients completed the study with a programmed median anisometropia of 0.81 Diopter. The median binocular uncorrected VA was better than 0 logMAR at the three evaluated distances, and stereopsis was not impaired in any patient, achieving a median of ≤119 arcsec at any distance. CSDC increased binocularly after surgery, significantly in the range of −2 to −3 D (p < 0.05). No clinically relevant changes were observed in PROs compared with the preoperative period, and all patients achieved spectacle independence at intermediate/near distance and were likely or very likely to undergo the same surgery. In conclusion, micro-monovision with SMILE could be an effective procedure, with results that might be comparable to other laser correction techniques specifically designed for presbyopia correction.

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Section: Discussionmentioning

confidence: 99%

Effectiveness of SMILE Combined with Micro-Monovision in Presbyopic Patients: A Pilot Study

Fernández¹,

Alonso-Aliste

Burguera³

et al. 2023

Life

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Clinical Outcomes of a Trifocal Versus an Extended Depth of Field Intraocular Lens in Chinese Patients With Cataract: A Prospective Cohort Study

Chen,

Zhang

2024

Journal of Ophthalmology

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Purpose: To compare the standard outcomes between the PanOptix and Symfony multifocal intraocular lenses (MIOLs) in Chinese patients.Methods: This prospective observational cohort study enrolled patients with cataracts between April 2021 and December 2021 at Xiamen Eye Center Affiliated to Xiamen University. The patients were grouped in the PanOptix (TIOL group) and Symfony (EDF group) according to the IOLs implanted. Uncorrected distant, corrected distance, binocular uncorrected intermediate, and near visual acuity (UNVA), distance‐corrected intermediate and near VA (DCNVA) , defocus curve, spectacle independence, contrast sensitivity (CS), and visual disturbances were evaluated after 3 months.Results: Forty patients (80 eyes) were enrolled in the study (20/group). Three months after the operation, UNVA (0.13 ± 0.16) and DCNVA (0.08 ± 0.08) were better in the TIOL group than in the EDF group (0.22 ± 0.08 and 0.22 ± 0.08, respectively, p = 0.003 and p < 0.001, respectively). The TIOL group achieved a better‐than‐0.15‐logMAR VA from +0.5 D to −2.5 D (40 cm). VAs of the TIOL group from −1 D (100 cm) to −4 D (25 cm) were better than in the EDF group (p < 0.05). There were no significant differences in the intermediate and far vision outcomes (p > 0.05). Total near‐vision spectacle independence was higher in the TIOL group (80%) than in the EDF group (50%) (p = 0.039).Conclusion: Compared with EDF, TIOL leads to better near‐vision outcomes without significant differences for intermediate and distant vision outcomes.Trial Registration: ClinicalTrials.gov identifier: ChiCTR2100044558.

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Simulations of Multifocal Vision in Patients With Previous Monofocal Intraocular Lens Implantation

Fernández,

Burguera,

Maldonado-Carmona

et al. 2023

J Refract Surg

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Purpose: To evaluate the effectiveness and patient acceptance of multifocal vision simulation in patients with previous monofocal intraocular lens (IOL) implantation, and to explore their willingness-to-pay (WTP) and willingness-to-accept (WTA) based on the perceived advantages and disadvantages of multifocal vision. Methods: Seventeen patients with previous monofocal IOL implantation participated in this cross-sectional study. The SimVis Gekko device (2EyesVision SL) was used to simulate monofocal (Evaluation B) and multifocal (Evaluation C) visual experiences, compared to their existing vision (Evaluation A). Visual acuity at three distances and defocus curves were measured. Patients responded to inquiries about visual quality in each evaluation, bothersomeness of photic phenomena, probability to select the visual experience, and the monetary value they associated with enhanced WTP or diminished WTA visual quality. Results: The simulations underestimated the visual acuity reported for the IOL in existing literature by one or two lines, depending on the testing distance. This underestimation was more pronounced in defocus curves. However, 70.6% of patients were likely or very likely to opt for multifocal vision, indicating they perceived the benefits of multifocality. The WTP for multifocal vision was twice that of monofocal vision, and the WTP/WTA ratio exceeded 1, suggesting the perceived vision benefits outweighed potential drawbacks. Conclusions: Despite underestimating the expected postoperative visual performance, the multifocal simulation enabled patients to perceive the benefits of multifocal vision to some extent. This system could be beneficial in avoiding potential postoperative complaints, but the possible rise in false-positive results should be considered and evaluated in future research. [ J Refract Surg . 2023;39(12):831–839.]

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Objective cataract grading methods and expected contrast sensitivity reestablishment with multifocal intraocular lenses

Cited by 3 publications

References 28 publications

Effectiveness of SMILE Combined with Micro-Monovision in Presbyopic Patients: A Pilot Study

Effectiveness of SMILE Combined with Micro-Monovision in Presbyopic Patients: A Pilot Study

Clinical Outcomes of a Trifocal Versus an Extended Depth of Field Intraocular Lens in Chinese Patients With Cataract: A Prospective Cohort Study

Simulations of Multifocal Vision in Patients With Previous Monofocal Intraocular Lens Implantation

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