To investigate differences in ocular surface parameters, including tear breakup time and ocular staining scores, among patients with lacrimal duct obstruction (LDO) at various sites and explore correlations between ocular surface conditions and LDO location.
Approach:
Key Findings:
Significant differences in NIBUT and SICCA OSS between upper and lower LDO groups (PNIBUT = 0.037).
No significant differences in gender and age between the two groups (P > 0.05).
Interpretation:
The study indicates that the location of lacrimal duct obstruction may influence ocular surface metrics, particularly tear film stability and ocular surface staining.
Limitations:
Retrospective design may introduce bias, potentially affecting the reliability of the findings.
Limited sample size may affect generalizability to the broader population.
Conclusion:
The findings suggest a correlation between the location of LDO and ocular surface metrics, highlighting the need for further research to understand the underlying mechanisms and their implications for clinical practice.
