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Related Experiment Videos

Small-size pediatric vitrectomy wide-angle contact lens.

Gholam A Peyman1, Christina Canakis, Charalampos Livir-Rallatos

  • 1Department of Ophthalmology, Tulane University Health Sciences Center, New Orleans, Louisiana 70112-2699, USA. mchiass1@tulane.edu

American Journal of Ophthalmology
|February 5, 2003
PubMed
Summary

A new wide-field vitrectomy contact lens enhances pediatric vitreoretinal surgery. This specialized instrument provides an excellent field of view and ample surgeon space, proving effective in 10 pediatric cases.

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Area of Science:

  • Ophthalmology
  • Surgical Instrumentation

Background:

  • Pediatric vitreoretinal surgery presents unique challenges.
  • Standard surgical lenses may not offer optimal visualization or maneuverability for pediatric cases.

Purpose of the Study:

  • To describe a novel wide-field vitrectomy contact lens.
  • To evaluate its utility in pediatric vitreoretinal surgery.

Main Methods:

  • Design of a two-piece glass vitrectomy lens with a 13.6 mm diameter.
  • Laboratory measurements of optical properties and field of view.
  • Clinical application in 10 pediatric cases.

Main Results:

  • Achieved a 61-degree binocular and up to 129-degree maximum field of view.

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  • Demonstrated 0.50x magnification with no intraoperative complications or lens exchanges in 10 cases.
  • Two-piece glass construction allowed for versatile sterilization methods.

    • Conclusions:

    • The new lens successfully facilitated pediatric vitreoretinal surgery.
    • It provided an excellent wide field of view and surgeon workspace.
    • The design proved suitable for various sterilization techniques and effective in cases of retinopathy of prematurity and traumatic eye injury.