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Corneal sensitivity in pregnancy

B Riss, P Riss

    Ophthalmologica. Journal International D'Ophtalmologie. International Journal of Ophthalmology. Zeitschrift Fur Augenheilkunde
    |January 1, 1981
    PubMed
    Summary
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    Corneal sensitivity significantly decreases during pregnancy, as measured by a new esthesiometer. This change in touch sensitivity was observed in 86 pregnant women and was not linked to gestational duration or weight gain.

    Area of Science:

    • Ophthalmology
    • Physiology
    • Reproductive Medicine

    Background:

    • Limited research exists on corneal sensitivity changes during pregnancy.
    • Previous studies used less precise instruments for measuring corneal touch threshold.
    • Pregnancy-related physiological changes may impact ocular surface sensitivity.

    Purpose of the Study:

    • To investigate changes in corneal sensitivity during pregnancy using a novel, precise esthesiometer.
    • To establish a baseline for corneal touch threshold in pregnant individuals.
    • To explore potential correlations between corneal sensitivity and pregnancy parameters.

    Main Methods:

    • Utilized a Draeger esthesiometer for exact and reproducible determination of corneal touch threshold.
    • Recruited 86 pregnant women (13-40 weeks gestation) and a control group of non-pregnant women.

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  • Analyzed data for relationships between corneal sensitivity and gestational duration, weight gain, and mean arterial pressure.

    • Main Results:

    • Corneal sensitivity thresholds were significantly higher in pregnant women compared to non-pregnant controls.
    • The observed decrease in corneal sensitivity did not correlate with the duration of gestation.
    • No significant relationship was found between corneal sensitivity and weight gain or mean arterial pressure during pregnancy.

    Conclusions:

    • Pregnancy is associated with a significant decrease in corneal sensitivity.
    • The precise mechanism underlying this change requires further investigation.
    • Findings provide a new understanding of ocular surface adaptations during gestation.