{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T11:07:45Z","timestamp":1791198465712,"version":"4.1.0"},"reference-count":58,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,3,27]],"date-time":"2023-03-27T00:00:00Z","timestamp":1679875200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Ministerio de Ciencia e Innovaci\u00f3n, Agencia Estatal de Investigaci\u00f3n (AEI) of the Spanish Government","award":["PID2020-114582RB-I00\/AEI\/10.13039\/501100011033"],"award-info":[{"award-number":["PID2020-114582RB-I00\/AEI\/10.13039\/501100011033"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostics"],"abstract":"<jats:p>The strong wavelength dependency of diffractive elements casts reasonable doubts on the reliability of near-infrared- (NIR)-based clinical instruments, such as aberrometers and double-pass systems, for assessing, post-surgery, the visual quality of eyes implanted with diffractive multifocal intraocular lenses (DMIOLs). The results obtained for such patients when using NIR light can be misleading. Ordinary compensation for the refractive error bound to chromatic aberration is not enough because it only considers the best focus shift but does not take into account the distribution of light energy among the foci which strongly depends on the wavelength-dependent energy efficiency of the diffractive orders used in the DMIOL design. In this paper, we consider three commercial DMIOL designs with the far focus falling within the range of (\u22121, 0, +1)-diffractive orders. We prove theoretically the differences existing in the physical performance of the studied lenses when using either the design wavelength in the visible spectrum or a NIR wavelength (780 to 850 nm). Based on numerical simulation and on-bench experimental results, we show that such differences cannot be neglected and may affect all the foci of a DMIOL, including the far focus.<\/jats:p>","DOI":"10.3390\/diagnostics13071259","type":"journal-article","created":{"date-parts":[[2023,3,28]],"date-time":"2023-03-28T01:41:34Z","timestamp":1679967694000},"page":"1259","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":11,"title":["Pitfalls of Using NIR-Based Clinical Instruments to Test Eyes Implanted with Diffractive Intraocular Lenses"],"prefix":"10.3390","volume":"13","author":[{"given":"Fidel","family":"Vega","sequence":"first","affiliation":[{"name":"Departament d\u2019\u00d2ptica i Optometria, Universitat Polit\u00e8cnica de Catalunya, Barcelonatech, ViolinistaVellsol\u00e0 37, 08222 Terrassa, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4880-9680","authenticated-orcid":false,"given":"Miguel","family":"Faria-Ribeiro","sequence":"additional","affiliation":[{"name":"Physics Center of Minho and Porto Universities (CF-UM-UP), University of Minho, 4710-057 Braga, Portugal"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jes\u00fas","family":"Armengol","sequence":"additional","affiliation":[{"name":"Departament d\u2019\u00d2ptica i Optometria, Universitat Polit\u00e8cnica de Catalunya, Barcelonatech, ViolinistaVellsol\u00e0 37, 08222 Terrassa, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6950-2373","authenticated-orcid":false,"given":"Mar\u00eda S.","family":"Mill\u00e1n","sequence":"additional","affiliation":[{"name":"Departament d\u2019\u00d2ptica i Optometria, Universitat Polit\u00e8cnica de Catalunya, Barcelonatech, ViolinistaVellsol\u00e0 37, 08222 Terrassa, Spain"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,3,27]]},"reference":[{"key":"ref_1","first-page":"339","article-title":"Multifocal Intraocular Lenses and Extended Depth of Focus Intraocular Lenses","volume":"6","author":"Breyer","year":"2017","journal-title":"Asia-Pacific J. 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