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Ocular effects of hyperbaric oxygen.

A J Lyne

    Transactions of the Ophthalmological Societies of the United Kingdom
    |April 1, 1978
    PubMed
    Summary
    This summary is machine-generated.

    Hyperbaric oxygen therapy can cause myopia in patients. This study found that prolonged oxygen therapy led to significant refractive changes, potentially due to increased lens refractive index.

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    Area of Science:

    • Ophthalmology
    • Hyperbaric Medicine

    Background:

    • Hyperbaric oxygen therapy (HBOT) is a medical treatment involving exposure to 100% oxygen at increased atmospheric pressure.
    • Long-term effects of HBOT on ocular health are not fully understood.

    Purpose of the Study:

    • To investigate the ocular effects of prolonged hyperbaric oxygen therapy.
    • To determine the incidence and magnitude of refractive changes in patients undergoing HBOT.

    Main Methods:

    • A cohort of 26 patients undergoing HBOT for over one month was prospectively studied.
    • Ocular refractions were measured to assess changes in visual acuity.

    Main Results:

    • Eighteen out of 26 patients (69%) developed myopia.
    • The induced myopia ranged from 0.5 to 5.5 dioptres.

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  • No other ocular side effects were reported.

    • Conclusions:

    • Prolonged HBOT can induce significant myopic shifts in refractive error.
    • The observed refractive changes are hypothesized to result from an increased refractive index of the lens.