Related Experiment Video
Updated: Jul 14, 2026
08:55
Translaminar Autonomous System Model for the Modulation of Intraocular and Intracranial Pressure in Human Donor Posterior Segments
Published on: April 24, 2020
Eye bank issues: II. Preservation techniques: warm versus cold storage.
Elisabeth Pels1, Hilde Beele, Ilse Claerhout
1Cornea Bank Amsterdam, Netherlands Institute for Neuroscience, Meibergdreef 47, 1105 BA Amsterdam, The Netherlands.
International Ophthalmology
|May 17, 2007
Summary
Eye banks use hypothermic storage or organ culture to preserve corneas for transplants. Both methods offer similar graft survival rates, with choices depending on logistical and safety factors.
Area of Science:
- Ophthalmology
- Transplantation Science
- Tissue Preservation
Background:
- Penetrating keratoplasty relies on donor corneas from eye banks.
- Corneoscleral buttons are preserved using hypothermic storage or organ culture.
- These methods present distinct technical, evaluative, and safety profiles.
Purpose of the Study:
- To compare hypothermic storage and organ culture for donor cornea preservation.
- To analyze differences in technical aspects, tissue evaluation, storage duration, and microbiological safety.
- To understand factors influencing the choice of preservation method.
Main Methods:
- Review of hypothermic storage (2-6°C) and organ culture (31-37°C) techniques.
- Comparison of pre- and post-storage endothelial evaluation methods (specular microscopy, light microscopy).
- Analysis of storage durations (7-10 days for hypothermic, up to 4 weeks for organ culture).
Main Results:
- Hypothermic storage is simpler with less equipment; organ culture is more complex but allows longer storage.
- Organ culture enables routine post-storage endothelial evaluation and detects microbial contamination.
- Both preservation techniques demonstrate comparable graft survival rates.
Conclusions:
- The selection of donor cornea preservation method is multifactorial.
- Technical simplicity, equipment needs, storage duration, and microbiological safety influence technique choice.
- Geographical variations in preservation method use are explained by these factors.
