Dry Eye Clinical Trial
Official title:
Safety and Efficacy of Dexamethasone Ophthalmic Insert (Dextenza®) in the Management of Clinically Significant Dry Eye
To determine efficacy and safety profile of dexamethasone 0.4mg lacrimal insert in dry eye related ocular surface inflammation.
Previous studies showed that dexamethasone and loteprednol topical drops have led to favorable results. However, the requirement of frequent instillation of drops by the patients is problematic causing discomfort and blurring of vision and requires remembering and dexterity for instillation, poor compliance is not uncommon. In addition Investigators believe that instillation of drops disturbs the homeostasis of the natural tear film due to physical and chemical trauma due to large drop volume (50 microliters) hammering on the eye surface (which can only hold 7 to 10 microliters). Particularly washing away of the mucin layer that holds all the "good ingredients" in the tears is harmful to the ocular surface. Therefore, "dropless" treatment of dry eye is desirable. Dextenza® (dexamethasone ophthalmic insert, Ocular Therapeutix Inc., Bedford, MA) is a corticosteroid intracanalicular insert approved by US-FDA in November 2018 for the treatment of post-surgical ocular inflammation and pain. It is inserted into the lower lacrimal punctum and into the canaliculus. A single insert releases a 0.4 mg dose of dexamethasone for up to 30 days following insertion. Dextenza® is resorbable and does not require removal. Investigators hypothesize that Dextenza® could mimic short-term topical steroid use in a tapering manner in patients with clinically significant dry eye and show efficacy in improving its symptoms and signs, as was previously shown with other steroid preparations. If proven, the use of Dextenza® may shift paradigms in the management of the clinically significant ocular surface disease. To test this hypothesis, investigators propose to study the effects of Dextenza® in the treatment of clinically significant dry eye. ;
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