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Study: No correlation between tear osmolarity, self-reported ocular symptoms
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In a study to assess the relationship between reported symptoms of dry eye and tear osmolarity, researchers found that there was no correlation.
Caffery and colleagues reported in Optometry and Vision Science that they asked 249 attendees at an optometric educational meeting to complete a five-question survey as well as answer the question, "Do you think you have dry eye?" Participants were then tested with a TearLab instrument to determine tear osmolarity, according to the study.
With the use of Pearson correlation analyses, the researchers discovered that the results of the questionnaire and dry eye question did not correspond with the results of the TearLab test.
"In this nonclinical population, there was no significant correlation between tear osmolarity and ocular symptoms as reported or between tear osmolarity and the self-assessment of dry eye," the authors concluded.
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