Association between dry eye symptoms and signs

Area of Science:

• Ophthalmology
• Optometry
• Clinical Research

Background:

• Dry eye disease is a prevalent condition affecting ocular comfort and vision.
• Accurate diagnosis relies on correlating patient-reported symptoms with objective clinical findings.
• Understanding these associations is crucial for effective management strategies.

Purpose of the Study:

• To investigate the relationship between subjective dry eye symptoms, measured by the Ocular Surface Disease Index (OSDI), and various clinical eye examination parameters.
• To determine the strength and consistency of correlations between patient-reported dry eye severity and objective clinical signs.

Main Methods:

• A clinical-based survey was conducted on 212 first-year students undergoing ocular health examinations.
• Participants completed the Ocular Surface Disease Index (OSDI) questionnaire.
• Objective dry eye tests including meibomian gland assessment, tear break-up time, fluorescein staining, Schirmer test, and blink rate were performed.

Main Results:

• A statistically significant, though low, association was found between OSDI scores and blink rate (r_s = 0.140, P < 0.042) and contrast sensitivity (r_s = 0.263, P < 0.0001).
• No significant associations were observed between OSDI scores and corneal staining, Schirmer test results, tear break-up time, or meibomian gland characteristics.
• Overall, correlation coefficients indicated low to moderate associations between dry eye symptoms and clinical test results.

Conclusions:

• The associations between subjective dry eye symptoms and objective clinical findings are generally weak and inconsistent.
• These findings suggest potential challenges in diagnosing and effectively treating dry eye disease based solely on current clinical examinations.
• Further investigation into diagnostic markers and treatment approaches for dry eye is warranted.