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    Br J Ophthalmol. 2007 Apr;91(4):497-9. Epub 2006 Aug 17.

    Accuracy and performance of a commercially available Dosing Aid.

    Cronin TH, Kahook MY, Lathrop KL, Noecker RJ.

    UPMC Eye Center, University of Pittsburgh, 203 Lothrop Street, Suite 800, Pittsburgh, PA 15213, USA.

    AIM: To evaluate the recently introduced Travatan Dosing Aid (TDA) for its accuracy in recording and dispensing eyedrops. METHODS: The number of eyedrops dispensed with each lever depression and agreement of total number of drops dispensed with that recorded by the device was evaluated in a controlled setting. RESULTS: The TDA correctly recorded a drop being dispensed 100% of the time with full TDA lever depression for <3 s. Under these conditions, agreement between numbers of drops dispensed and recorded was 99%. However, failure to fully depress the lever or prolonged lever depression for >4 s resulted in unreliable TDA recording. CONCLUSION: Eyedrops were reliably recorded by the TDA after each full lever depression. However, patients need to be instructed about optimal technique so that evaluation of compliance is not confounded by mechanical factors.

    PMID: 16916873 [PubMed - indexed for MEDLINE]

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    Patient drug information

    • How to Use Eyedrops

      Wash your hands thoroughly with soap and water.Check the dropper tip to make sure that it is not chipped or cracked.Avoid touching the dropper tip against your eye or anything else—eyedrops and dropper must be kept clean...

    • Travoprost Ophthalmic (Travatan®)

      Travoprost is used to treat eye conditions, including glaucoma and ocular hypertension, in which increased pressure can lead to a gradual loss of vision. Travoprost is used for patients who cannot use other eye medicatio...