CORRELATION BETWEEN OCULAR SURFACE DISEASE INDEX(OSDI), TEAR FILM BREAK UP TIME(TFBUT) AND SCHIRMER’S TESTS IN CASES OF DRY EYE DISEASE

Abstract

To study the Correlation between Ocular surface disease index (OSDI0,tear film break up time (TFBUT) and Schirmers Test in case of dry Eye. Materials and Methods- Observational study was conducted at the Ophthalmology Department of a Tertiary Hospital between 6 months . commenced with the administration of the OSDI questionnaire. Subsequently, Tear Film Break-Up Time (TFBUT) and Schirmer's test were conducted, and the resulting data was subject to analysis. OSDI scores were recorded on a scale ranging from 0 to 100, with higher scores indicating greater disability. A diagnosis cut-off point for OSDI scores was established at ≥35.Results- suggests a positive correlation between Schirmer's test and TFBUT, indicating that as the Schirmer's test values increase, TFBUT values tend to increase as well. On the other hand, there is a negative correlation between TFBUT and OSDI, indicating that as TFBUT decreases, OSDI scores tend to increase, reflecting worse ocular surface discomfort. Conclusion- The Ocular Surface Disease Index (OSDI) questionnaire, in combination with quick and non-invasive clinical tests like the Schirmer test and Tear Film Break-Up Time (TBUT), provides a comprehensive approach to diagnose dry eye. This combined approach helps clinicians accurately diagnose and manage dry eye by considering both subjective and objective aspects of the condition.