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. 2006 Aug 17;91(4):497–499. doi: 10.1136/bjo.2006.103093

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Figure 3 Percentage agreement between Travatan Dosing Aid device administration and recording of a single eye drop with respect to duration of complete lever depression. Agreement was 100%, 99%, 33% and 10% for 1, 2, 3, and 4 s of lever depression, respectively. No drops were recorded at 5 s of lever depression.