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Change in the accommodative force on the lens of the human eye with age.
Vision Res. 2008 Jan; 48(1):119-26.VR

Abstract

The aim of the study was to determine the age-dependence of the accommodative force on the lens in order to make it clear whether the causes of presbyopia are due to lenticular or extralenticular changes. A finite element model of the lens of an 11-, 29- and 45-year-old human eye was constructed to represent the fully accommodated state. Subsequently, the force that was needed to mould the lens into its unaccommodated state was calculated. The force on the lens appeared to be preserved with age, with only a slight increase to a value of approximately 0.06N. In conclusion, the preservation of the net force delivered by the extralenticular ciliary body indicates that the causes of presbyopia must be ascribed to lenticular changes.

Authors+Show Affiliations

Department of Physics and Medical Technology, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands. ea.hermans@vumc.enlNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

18054980

Citation

Hermans, E A., et al. "Change in the Accommodative Force On the Lens of the Human Eye With Age." Vision Research, vol. 48, no. 1, 2008, pp. 119-26.
Hermans EA, Dubbelman M, van der Heijde GL, et al. Change in the accommodative force on the lens of the human eye with age. Vision Res. 2008;48(1):119-26.
Hermans, E. A., Dubbelman, M., van der Heijde, G. L., & Heethaar, R. M. (2008). Change in the accommodative force on the lens of the human eye with age. Vision Research, 48(1), 119-26.
Hermans EA, et al. Change in the Accommodative Force On the Lens of the Human Eye With Age. Vision Res. 2008;48(1):119-26. PubMed PMID: 18054980.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Change in the accommodative force on the lens of the human eye with age. AU - Hermans,E A, AU - Dubbelman,M, AU - van der Heijde,G L, AU - Heethaar,R M, Y1 - 2007/12/04/ PY - 2007/08/09/received PY - 2007/10/24/revised PY - 2007/10/29/accepted PY - 2007/12/7/pubmed PY - 2008/4/12/medline PY - 2007/12/7/entrez SP - 119 EP - 26 JF - Vision research JO - Vision Res. VL - 48 IS - 1 N2 - The aim of the study was to determine the age-dependence of the accommodative force on the lens in order to make it clear whether the causes of presbyopia are due to lenticular or extralenticular changes. A finite element model of the lens of an 11-, 29- and 45-year-old human eye was constructed to represent the fully accommodated state. Subsequently, the force that was needed to mould the lens into its unaccommodated state was calculated. The force on the lens appeared to be preserved with age, with only a slight increase to a value of approximately 0.06N. In conclusion, the preservation of the net force delivered by the extralenticular ciliary body indicates that the causes of presbyopia must be ascribed to lenticular changes. SN - 0042-6989 UR - https://www.unboundmedicine.com/medline/citation/18054980/Change_in_the_accommodative_force_on_the_lens_of_the_human_eye_with_age_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0042-6989(07)00479-8 DB - PRIME DP - Unbound Medicine ER -