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Related Experiment Videos

Artificial orbit system for experimental surgery with enucleated globes.

J A Lowery1, J M Parel, T J Roussel

  • 1Department of Ophthalmology, Bascom Palmer Eye Institute, Miami, FL 33101.

Ophthalmic Surgery
|July 1, 1990
PubMed
Summary

This study introduces a portable artificial orbit system for precise globe positioning and pressure control during ocular experiments. It enables accurate intraocular pressure manipulation and monitoring for advanced anterior segment research.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Surgical Instrumentation

Background:

  • Maintaining globe integrity and precise positioning is crucial for experimental ocular procedures.
  • Existing systems may lack portability or precise pressure control capabilities.

Purpose of the Study:

  • To describe a novel portable system for enucleated globes in experimental settings.
  • To enable accurate positioning, physiologic integrity restoration, and intraocular pressure (IOP) control.

Main Methods:

  • A vacuum fixation ring and pressurized socket secure and position the globe.
  • A gravity infusion system and piezoelectric sensor control IOP from 0 to over 300 mm Hg.
  • Simultaneous monitoring and data recording of fixation, intraocular, and extraocular pressures.

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Main Results:

  • The system provides stable globe fixation and precise IOP control (0-70 mm Hg, and >300 mm Hg).
  • Anterior segment accessibility is maintained throughout procedures.
  • The portable system allows globe transport between experimental stations without altering settings.

Conclusions:

  • The artificial orbit system offers a portable, controlled environment for ocular research.
  • It facilitates experiments such as tonometer calibration and IOP-related studies.
  • The system enhances the reliability and reproducibility of anterior segment and vitrectomy experiments.