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Abstract #58908 Published in IGR 16-3

Mirror-hat device as a drop delivery aid: a pilot study

Strungaru MH; Peck J; Compeau EC; Trope GE; Buys YM
Canadian Journal of Ophthalmology 2014; 49: 333-338

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OBJECTIVE: To evaluate the effectiveness of a novel mirror-hat drop delivery aid. DESIGN: Prospective, observational study. PARTICIPANTS: Sixty eyes from 30 subjects with primary open-angle glaucoma or ocular hypertension attending the glaucoma unit at the Toronto Western Hospital. METHODS: The mirror-hat device consists of a magnifying mirror attached to a brimmed cap. The aid was provided to subjects who self-administered topical antiglaucoma medications. Drop instillation technique (time taken to instill a drop, number of drops dispensed, drop contact location, and contamination of bottle tip) was evaluated with and without the device. Subjects also completed a survey regarding drop administration and satisfaction with the device. RESULTS: Subjects were less likely to contaminate the bottle tip by touching their eye/eyelid when using the device than without the device (13% vs 37%, respectively, p = 0.02). Twenty-six subjects (86.7%) indicated they could see the drop using the device versus 12 (40%) who reported they saw the drop without the device (p = 0.0005). There were no statistically significant differences in any of the other outcomes. No predictive factors were associated with improved drop administration technique while using the device including uncorrected near-visual acuity, lens status, and glaucoma severity. CONCLUSIONS: Use of the mirror-hat aid is associated with significantly less bottle-tip contamination and better visualization of the drop than without the device; however, the device did not help to reduce time, number of drops, or accuracy when administering eye drops.

Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto.

Full article

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Classification:

11.16 Vehicles, delivery systems, pharmacokinetics, formulation (Part of: 11 Medical treatment)
11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (Part of: 11 Medical treatment)

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