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STT is invaluable in the diagnosis and monitoring of quantitative tear film deficiency (i.e., keratoconjunctivitis sicca); however, it is not sufficient to optimize therapy and fully recognize other contributing factors for the disturbance in ocular surface homeostasis. The present work reviews diagnostic tests for assessing aqueous tear production in veterinary medicine, as well as the quality of tears, corneal epithelial barrier integrity, and the lacrimal functional unit.<\/jats:p>","DOI":"10.1111\/vop.13044","type":"journal-article","created":{"date-parts":[[2022,12,28]],"date-time":"2022-12-28T03:11:29Z","timestamp":1672197089000},"page":"5-15","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":29,"title":["A review of diagnostic tests for qualitative and quantitative tear film deficiency in dogs"],"prefix":"10.1111","volume":"26","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8223-2267","authenticated-orcid":false,"given":"Hiroko","family":"Iwashita","sequence":"first","affiliation":[{"name":"Triangle Animal Eye Clinic Tokyo 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