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Magnetic Resonance Imaging of the Presbyopic Eye

  • John L. Semmlow
  • Susan A. Menditto
  • Reuben S. Mezrich
Chapter
Part of the Perspectives in Vision Research book series (PIVR)

Abstract

Magnetic resonance imaging (MRI) is a noninvasive process for imaging internal structures in the body. High-resolution imaging of the ciliary muscle and lens can be utilized to verify the predictions from the computer simulation model of presbyopia described by Semmlow et al. (Chapter 24). Data for this model were obtained from experiments using topically applied drugs to diminish or enhance the effectiveness of the ciliary muscle. Although the model demonstrates that the presbyopic mechanism is primarily lenticular, and that ciliary muscle change is not fundamental to this process, it does not rule out some change in ciliary muscle response as presbyopia advances. However, the relationship between ciliary muscle and lens response during presbyopia cannot be unambiguously determined by analysis of external behavior alone, such as that observed in the drug studies. High-resolution MRI could provide a direct measurement of ciliary muscle response at known levels of lens accommodation response.

Keywords

Surface Coil Contractile State Ciliary Muscle Magnetic Resonanee Image Diagnostic Magnetic Resonance Imaging 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Referemce

  1. Fischer, R. F., 1986, The citiary body in accommodation, Trans. Ophthalmol. Soc. U.K. 105:208–219Google Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • John L. Semmlow
    • 1
    • 2
  • Susan A. Menditto
    • 1
  • Reuben S. Mezrich
    • 1
    • 3
  1. 1.Department of Biomedical EngineeringRutgers UniversityPiscatawayUSA
  2. 2.Department of Surgery (Bioengineering), UMDNJRobert Wood Johnson Medical SchoolPiscatawayUSA
  3. 3.Laurie Imaging CenterNew Brunswick Allied HospitalsNew BrunswickUSA

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