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Related Experiment Videos

Cornea-contact lens interaction in the aquatic environment

M S Brown1, I M Siegel

  • 1Department of Ophthalmology, New York University Medical Center, NY 10016, USA.

The CLAO Journal : Official Publication of the Contact Lens Association of Ophthalmologists, Inc
|February 12, 1998
PubMed
Summary

Contact lens wearers who scuba dive need specialized lenses due to underwater optical changes. Guidelines are provided for fitting contact lenses for ametropic divers, considering visual perception and corneal physiology.

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Area of Science:

  • Ophthalmology
  • Optics
  • Diving Physiology

Background:

  • A significant number of ametropic individuals use contact lenses for scuba diving.
  • Understanding the optical and physiological challenges of underwater environments is crucial for contact lens wearers.

Purpose of the Study:

  • To provide guidelines for fitting contact lenses for sport divers.
  • To discuss appropriate contact lens types and modifications for underwater activities.

Main Methods:

  • Literature review to establish guidelines for contact lens fitting in divers.
  • Analysis of optical and physiological factors affecting underwater vision.

Main Results:

  • Underwater optics necessitate modifications to contact lenses, affecting perceived image size and distance.

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  • Presbyopic myopes may require adjusted near additions, and monovision correction is suggested.
  • Rigid gas permeable and soft contact lenses present different risks and benefits for divers; disposable soft lenses mitigate contamination risks.

    • Conclusions:

    • Contact lens selection and modification for divers must account for altered light properties, corneal physiology, and visual perception underwater.
    • Recommendations are made for lens materials, underwater ametropia correction, and wearing modalities for sport divers.