Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery
Background: Corneal refractive surgery induces high-order aberrations, specifically spherical aberration (SA). These aberrations can have implications when patients later develop cataracts and require the implantation of multifocal intraocular lenses (MIOLs). MIOLs with asymmetric designs pose chall...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-07-01
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| Series: | Journal of Clinical Medicine |
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| Online Access: | https://www.mdpi.com/2077-0383/12/14/4758 |
| _version_ | 1797588863132106752 |
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| author | Luís Salvá Scott García Salvador García-Delpech Anabel Martínez-Espert Vicente Ferrando |
| author_facet | Luís Salvá Scott García Salvador García-Delpech Anabel Martínez-Espert Vicente Ferrando |
| author_sort | Luís Salvá |
| collection | DOAJ |
| description | Background: Corneal refractive surgery induces high-order aberrations, specifically spherical aberration (SA). These aberrations can have implications when patients later develop cataracts and require the implantation of multifocal intraocular lenses (MIOLs). MIOLs with asymmetric designs pose challenges in predicting outcomes, particularly in these cases. The aim of this study was to evaluate how different values of SA, resulting from various types of refractive surgeries, affect the optical performance of the FEMTIS Comfort intraocular lens. Methods: The through-focus modulation transfer function (TF-MTF) curve and high-contrast images of tumbling E were used as parameters to assess the optical performance of the MIOL. These parameters were measured using an adaptive optics visual simulator. Results: Increasingly negative values of SA make the MIOL more bifocal, moderating its extended-depth-of-focus characteristic. Conversely, higher positive SA values cause the TF-MTF curve to shift towards positive vergences, leading to worsened distance vision in the +1.00 to +2.00 D range, but improved vision in the +0.50 D to +1.00 D range. Conclusions: Assessing SA in patients prior to implanting MIOLs with asymmetric designs is necessary for predicting outcomes and making informed decisions based on the visual requirements of patients. |
| first_indexed | 2024-03-11T00:58:04Z |
| format | Article |
| id | doaj.art-cc9fef0cf698445c8b8c983cd8f85279 |
| institution | Directory Open Access Journal |
| issn | 2077-0383 |
| language | English |
| last_indexed | 2024-03-11T00:58:04Z |
| publishDate | 2023-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Clinical Medicine |
| spelling | doaj.art-cc9fef0cf698445c8b8c983cd8f852792023-11-18T19:53:30ZengMDPI AGJournal of Clinical Medicine2077-03832023-07-011214475810.3390/jcm12144758Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive SurgeryLuís Salvá0Scott García1Salvador García-Delpech2Anabel Martínez-Espert3Vicente Ferrando4Oftalmedic Salvà, 07013 Palma de Mallorca, SpainOftalmedic Salvà, 07013 Palma de Mallorca, SpainClínica Aiken, Fundación Aiken, 46004 Valencia, SpainDepartamento de Óptica y Optometría y Ciencias de la Visión, Universitat de València, 46100 Valencia, SpainCentro de Tecnologías Físicas, Universitat Politècnica de València, 46022 Valencia, SpainBackground: Corneal refractive surgery induces high-order aberrations, specifically spherical aberration (SA). These aberrations can have implications when patients later develop cataracts and require the implantation of multifocal intraocular lenses (MIOLs). MIOLs with asymmetric designs pose challenges in predicting outcomes, particularly in these cases. The aim of this study was to evaluate how different values of SA, resulting from various types of refractive surgeries, affect the optical performance of the FEMTIS Comfort intraocular lens. Methods: The through-focus modulation transfer function (TF-MTF) curve and high-contrast images of tumbling E were used as parameters to assess the optical performance of the MIOL. These parameters were measured using an adaptive optics visual simulator. Results: Increasingly negative values of SA make the MIOL more bifocal, moderating its extended-depth-of-focus characteristic. Conversely, higher positive SA values cause the TF-MTF curve to shift towards positive vergences, leading to worsened distance vision in the +1.00 to +2.00 D range, but improved vision in the +0.50 D to +1.00 D range. Conclusions: Assessing SA in patients prior to implanting MIOLs with asymmetric designs is necessary for predicting outcomes and making informed decisions based on the visual requirements of patients.https://www.mdpi.com/2077-0383/12/14/4758cataractsrefractive surgerymultifocal IOLsspherical aberrationadaptive optics visual simulator |
| spellingShingle | Luís Salvá Scott García Salvador García-Delpech Anabel Martínez-Espert Vicente Ferrando Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery Journal of Clinical Medicine cataracts refractive surgery multifocal IOLs spherical aberration adaptive optics visual simulator |
| title | Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery |
| title_full | Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery |
| title_fullStr | Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery |
| title_full_unstemmed | Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery |
| title_short | Optical Performance of a Segmented Extended-Depth-of-Focus Intraocular Lens under the Influence of Different Values of Spherical Aberration Generated by Refractive Surgery |
| title_sort | optical performance of a segmented extended depth of focus intraocular lens under the influence of different values of spherical aberration generated by refractive surgery |
| topic | cataracts refractive surgery multifocal IOLs spherical aberration adaptive optics visual simulator |
| url | https://www.mdpi.com/2077-0383/12/14/4758 |
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