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A long-term implantable aqueous delivery system for the external rabbit eye
Investigative Ophthalmology & Visual Science
|April 1, 1980
Summary
This study details an implantable system for continuous aqueous solution delivery to rabbit eyes over six weeks. The novel system, utilizing a refillable pump, offers a reliable, power-free method for ocular surface hydration.
Area of Science:
- Ophthalmology
- Biomedical Engineering
- Drug Delivery Systems
Background:
- Ocular surface health is critical for vision.
- Continuous delivery systems can address ocular surface issues.
- Existing methods may have limitations in sustained delivery.
Purpose of the Study:
- To evaluate an implantable system for continuous aqueous solution delivery to the external surface of rabbit eyes.
- To assess the feasibility and performance of a novel, power-free infusion pump for ocular applications.
Main Methods:
- An implantable Infusaid pump was used to deliver an aqueous solution.
- A polytetrafluoroethylene tube was implanted in the superior conjunctival fornix.
- The system was tested in six rabbit eyes for a duration of 6 weeks.
Main Results:
- The implantable system successfully delivered aqueous solution continuously.
- The system remained functional for the entire 6-week study period.
- The pump design allowed for easy refilling without external power.
Conclusions:
- The described implantable system is a viable method for sustained ocular surface hydration.
- This power-free, refillable pump technology shows promise for long-term ocular surface management.
- Further research could explore applications in treating ocular surface diseases.