000153178 001__ 153178
000153178 005__ 20251017144551.0
000153178 0247_ $$2doi$$a10.1016/j.visres.2025.108596
000153178 0248_ $$2sideral$$a143635
000153178 037__ $$aART-2025-143635
000153178 041__ $$aeng
000153178 100__ $$0(orcid)0009-0006-7694-8086$$aArcas-Carbonell, María
000153178 245__ $$aStructural and functional analysis of the eye according to the accommodation-age relationship
000153178 260__ $$c2025
000153178 5060_ $$aAccess copy available to the general public$$fUnrestricted
000153178 5203_ $$aThis study investigates how accommodative demand affects ocular function by examining variations in the anterior chamber depth (ACD), as well as the retinal and anterior surface curvatures of the crystalline lens across different age groups.
The study included 96 right eyes from healthy individuals aged 18 to 66 years. Accommodation was assessed using an aberrometer under demands up to 5 diopters (D). Images of the anterior segment and retina were recorded and analyzed with custom software to adjust these surfaces to conic curves, providing data on changes in ACD, anterior surface curvature of the crystalline lens, and retinal shape during accommodation.
The average age of participants was 35.42 ± 13.55 years. Accommodation matched the demand at low levels (up to 1D) but under-accommodated at higher demands. No significant differences were found in the anterior surface curvature of the crystalline lens with increased accommodation, though a weak trend was observed in younger individuals. ACD significantly decreased with accommodation due to the anterior displacement of the lens. Retinal curvature showed significant changes, including flattening, with increased accommodative demand. There were correlations between the anterior surface eccentricity of the crystalline lens and both ACD changes and retinal eccentricity.
In conclusion, accommodation effectively responds to demands up to 1D across all ages. Our findings suggest a tendency for retinal curvature to flatten to higher demands, requiring further validation. While the central curvature of the anterior surface of the crystalline lens does not change significantly, ACD decreases with accommodation, indicating how age and presbyopia influence accommodative capacity and structural changes in the eye.
000153178 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc-nd$$uhttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
000153178 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000153178 700__ $$0(orcid)0000-0003-2710-1875$$aOrduna-Hospital, Elvira$$uUniversidad de Zaragoza
000153178 700__ $$aOliete-Lorente, Sara
000153178 700__ $$aMechó-García, María
000153178 700__ $$0(orcid)0000-0003-1234-9712$$aFernández-Espinosa, Guisela$$uUniversidad de Zaragoza
000153178 700__ $$0(orcid)0000-0002-5621-1937$$aSanchez-Cano, Ana$$uUniversidad de Zaragoza
000153178 7102_ $$12002$$2647$$aUniversidad de Zaragoza$$bDpto. Física Aplicada$$cÁrea Óptica
000153178 773__ $$g230 (2025), 108596 [11 pp.]$$pVis. res.$$tVISION RESEARCH$$x0042-6989
000153178 8564_ $$s5871768$$uhttps://zaguan.unizar.es/record/153178/files/texto_completo.pdf$$yVersión publicada
000153178 8564_ $$s2438299$$uhttps://zaguan.unizar.es/record/153178/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000153178 909CO $$ooai:zaguan.unizar.es:153178$$particulos$$pdriver
000153178 951__ $$a2025-10-17-14:11:57
000153178 980__ $$aARTICLE