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Comment & Response
December 2015

Accuracy of Laboratory Assays in Ophthalmic Practice

Author Affiliations
  • 1Department of Optometry and Vision Sciences, Faculty of Medicine, Dentistry, and Health Sciences, University of Melbourne, Melbourne, Australia
JAMA Ophthalmol. 2015;133(12):1480. doi:10.1001/jamaophthalmol.2015.3856

To the Editor In their article titled “Variability of Tear Osmolarity in Patients With Dry Eye,” Bunya et al1 describe significant variability in TearLab osmolarity readings of clinical populations (control participants, patients with blepharitis, and patients with Sjögren syndrome) and suggest that this confounds clinical interpretation of tear osmolarity measures.

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