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An improved technique for collection of human tears
Journal of the American Optometric Association
|November 1, 1984
Summary
Researchers developed a novel tear collection device using a polyethylene tube and syringe. This improved system allows for rapid, safe collection of large tear volumes, enhancing human tear chemistry research and diagnostics.
Area of Science:
- Ophthalmology
- Biochemistry
- Medical Devices
Background:
- Previous tear collection methods were inadequate for research.
- Existing methods risked ocular damage and sample contamination.
Purpose of the Study:
- To develop an improved apparatus for human tear collection.
- To enhance the reliability and efficiency of tear chemistry research.
Main Methods:
- A new apparatus was constructed using a flexible polyethylene tube and a tuberculin syringe.
- The system was tested for its ability to collect tear volume and preserve sample integrity.
Main Results:
- The new apparatus collected a relatively large volume of tears quickly and safely.
- Tear chemistry analysis (total protein, IgA, lysozyme) showed no significant alteration.
- The device caused minimal irritation, allowing for larger subject populations.
Conclusions:
- The developed apparatus is a superior method for tear collection in research.
- This technique improves the reliability of tear chemistry studies and diagnostics.
- The device is suitable for clinical applications in eye disease diagnosis.