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[Cotton thread method for measuring tear secretion, suitable for soft contact lens wearers (method no. 3)].
1Kurihashi Eye Clinic, Hamatsu/Japan.
Klinische Monatsblatter Fur Augenheilkunde
|August 1, 1988
Summary
A new method accurately measures tear film production in soft contact lens wearers. This reliable test helps identify severe tear deficiencies, crucial for maintaining ocular health.
Area of Science:
- Ophthalmology
- Biomedical Engineering
Background:
- Existing lacrimation measurement methods include cotton thread and fluorescein tests.
- A need exists for a reliable lacrimal flow assessment in soft contact lens wearers.
Purpose of the Study:
- To introduce and validate a novel method for measuring lacrimal flow in soft contact lens wearers.
- To assess the reliability of the new method compared to existing techniques.
Main Methods:
- A new method (Method 3) utilizing fluorescent paper to measure lacrimal flow.
- Validation through control tests on subjects with normal eyes.
- Comparison with two previously described methods (Method 1 and Method 2).
Main Results:
- The new method demonstrates reliability in assessing lacrimal flow.
- Values below 5 mm indicate significant lacrimal deficiencies.
- The method is suitable for soft contact lens wearers.
Conclusions:
- Method 3 provides a reliable and practical approach for measuring lacrimal flow.
- This technique is particularly valuable for evaluating tear film in soft contact lens users.
- Early identification of lacrimal deficiencies is possible with this test.