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Influence of a multifocal intraocular lens centration and eye angles on light distortion and ocular scatter index

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Abstract

Purpose

To assess how eye axes and multifocal intraocular lens (MIOL) centration may impact the light distortion index (LDI) and ocular scatter index (OSI).

Methods

Fifty-eight subjects implanted with the trifocal MIOL Q-Flex M 640PM or Liberty 677MY (Medicontur) were included in this retrospective analysis. The following variables were collected with the Pentacam Wave (Oculus) considering the vertex normal as the coordinates center: chord-mu to the center of the pupil, chord-alpha to the geometrical center of the cornea, and chord-MIOL to the center of the diffractive ring. These measurements were correlated with OSI (HD Analyzer, Visiometrics) and LDI (light distortion analyzer, CEORLab).

Results

Chord-MIOL centroid was 0.12 mm at 62°, chord-mu was 0.09 mm at 174°, and chord-alpha was 0.38 mm at 188°. A relationship was found between OSI and LDI, rho = 0.58, p < 0.0005). No relationships were found between chord-mu or chord-alpha and the LDI or OSI, neither for the total magnitude, nor the decomposition in orthogonal components (p > 0.05). The LDI was significantly correlated with the temporal centration of the MIOL versus the vertex normal (rho = 0.32, p = 0.02).

Conclusions

As opposed to what has been previously described, the temporal centration of the MIOL was related to a decrease in the LDI. Future studies with extreme values of the included variables are required to establish cut-offs for considering these variables as exclusion criteria in the implantation of a MIOL.

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Authors and Affiliations

  1. Qvision, Department of Ophthalmology, VITHAS Almería Hospital, 04120, Almería, Spain

    Joaquín Fernández, Noemí Burguera, Carlos Rocha-de-Lossada & Manuel Rodríguez-Vallejo

  2. Hospital Regional Universitario de Málaga, Plaza del Hospital Civil, S/N, 29009, Málaga, Spain

    Carlos Rocha-de-Lossada

  3. Departamento de Cirugía, Área de Oftalmología, Universidad de Sevilla, Doctor Fedriani, S/N, 41009, Sevilla, Spain

    Carlos Rocha-de-Lossada

  4. Hospital Norte de Málaga, Avenida Poeta Muñoz Rojas, S/N, Antequera, 29200, Málaga, Spain

    Rahul Rachwani-Anil

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  1. Joaquín Fernández
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Correspondence to Manuel Rodríguez-Vallejo.

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This study was approved by the Ethics Committee of Research, Almería Center, Torrecárdenas Hospital Complex, and conducted in adherence with the tenets of the Declaration of Helsinki. For this type of study, formal consent is not required.

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Dr. Fernández is a consultant to Medicontur. The remaining authors declare no competing interests.

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Fernández, J., Burguera, N., Rocha-de-Lossada, C. et al. Influence of a multifocal intraocular lens centration and eye angles on light distortion and ocular scatter index. Graefes Arch Clin Exp Ophthalmol 261, 2291–2299 (2023). https://doi.org/10.1007/s00417-023-06028-x

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