000132461 001__ 132461 000132461 005__ 20240311111225.0 000132461 0247_ $$2doi$$a10.1111/opo.13271 000132461 0248_ $$2sideral$$a137596 000132461 037__ $$aART-2024-137596 000132461 041__ $$aeng 000132461 100__ $$aLockett-Ruiz, Veronica 000132461 245__ $$aIntracapsular accommodation mechanism in terms of lens curvature gradient 000132461 260__ $$c2024 000132461 5060_ $$aAccess copy available to the general public$$fUnrestricted 000132461 5203_ $$aThe intracapsular accommodation mechanism (IAM) may be understood as an increase in the lens equivalent refractive index as the eye accommodates. Our goal was to evaluate the existence of an IAM by analysing observed changes in the inner curvature gradient of the lens. To this end, we fitted a gradient index and curvature lens model to published experimental data on external and nucleus geometry changes during accommodation. For each case analysed, we computed the refractive power and equivalent index for each accommodative state using a ray transfer matrix. All data sets showed an increase in the effective refractive index, indicating a positive IAM, which was stronger for older lenses. These results suggest a strong dependence of the lens equivalent refractive index on the inner curvature gradient. 000132461 536__ $$9info:eu-repo/grantAgreement/EC/H2020/956720/EU/Opto-Biomechanical Eye Research Network/OBERON$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 956720-OBERON$$9info:eu-repo/grantAgreement/ES/MICINN/PID2019-107058RB-I00 000132461 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/ 000132461 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion 000132461 700__ $$0(orcid)0000-0002-1328-1716$$aNavarro, Rafael 000132461 700__ $$aLópez-Gil, Norberto 000132461 773__ $$g44, 2 (2024), 334-346$$pOphthalmic physiol. opt.$$tOPHTHALMIC AND PHYSIOLOGICAL OPTICS$$x0275-5408 000132461 8564_ $$s4431416$$uhttps://zaguan.unizar.es/record/132461/files/texto_completo.pdf$$yVersión publicada 000132461 8564_ $$s2719780$$uhttps://zaguan.unizar.es/record/132461/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada 000132461 909CO $$ooai:zaguan.unizar.es:132461$$particulos$$pdriver 000132461 951__ $$a2024-03-11-09:51:50 000132461 980__ $$aARTICLE