Screening for dry eye disease using infrared ocular thermography

Area of Science:

• Ophthalmology
• Medical Imaging
• Biomedical Engineering

Background:

• Dry eye disease (DED) is a prevalent condition affecting ocular surface health.
• Accurate and non-invasive diagnostic methods are crucial for effective DED management.

Purpose of the Study:

• To evaluate the efficacy of infrared (IR) ocular thermography as a screening tool for dry eye disease (DED).
• To identify specific thermographic metrics indicative of DED.

Main Methods:

• IR ocular thermography was conducted on 62 DED patients and 63 controls.
• A novel 'diamond' demarcation method was used for ocular surface marking and temperature acquisition.
• Static and dynamic temperature metrics were analyzed using receiver operating characteristic (ROC) curves.

Main Results:

• Absolute temperatures of the extreme nasal conjunctiva 5s and 10s post-eye opening were the most effective DED detectors.
• Sensitivity and specificity varied depending on the chosen threshold, with moderate accuracy (AUC 72-73%).
• Dynamic metrics and combined metrics did not significantly improve DED detection efficacy.

Conclusions:

• IR ocular thermography demonstrates utility in evaluating patients with dry eye disease.
• Specific static thermographic measurements show promise for DED screening.
• Further research may refine the application of IR thermography in clinical practice.