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Crystalline lens thickness changes as observed by pachometry

C C Dalziel, D J Egan

    American Journal of Optometry and Physiological Optics
    |May 1, 1982
    PubMed
    Summary
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    The crystalline lens thickness increases with age and accommodation. Relative lens thickness grows quadratically with age and directly with accommodative effort.

    Area of Science:

    • Ophthalmology
    • Biomedical Optics
    • Physiological Optics

    Background:

    • The crystalline lens changes shape to focus light.
    • Understanding lens dynamics is crucial for vision science.

    Purpose of the Study:

    • To quantify the relationship between age and crystalline lens thickness.
    • To investigate how accommodation affects lens thickness.

    Main Methods:

    • Crystalline lens thickness measured using a Haag-Streit slitlamp biomicroscope.
    • Depth measuring attachment utilized for precise measurements.
    • Lens thickness assessed across different age groups and accommodative states.

    Main Results:

    • Relative crystalline lens thickness demonstrated a quadratic increase with age.

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  • Lens thickness significantly increased with greater stimulus to accommodation.
  • Findings confirm lens thickening during accommodation.

    • Conclusions:

    • Age and accommodation are significant factors influencing crystalline lens thickness.
    • The quadratic relationship with age suggests specific developmental or aging patterns.
    • These findings contribute to models of ocular biomechanics and visual optics.