Effects of unoprostone on diurnal variation of intraocular pressure in healthy volunteers

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Abstract

Purpose: To prospectively evaluate the diurnal variation of intraocular pressure (IOP) during unoprostone treatment in 13 healthy volunteers. Method: IOP was measured by Goldmann applanation tonometry by the same observer every 3 hours from 9 am to 9 am the next morning. Unoprostone was then instilled at 9 am and 9 pm daily for 1 month. After 1 month, IOP was measured again with unoprostone instilled at 9 am and 9 pm during IOP measurement. We then compared the average daily IOP before and after the treatment (paired t-test). Results: After 1 month of treatment, the average IOP decreased at every time point but one (12 pm, 3 pm, 6 pm, 9 pm, 12 am, 3 am, and 9 am, but not at 6 am). There were no adverse reactions and none of the subjects discontinued unoprostone. Conclusion: The hypotensive effects of unoprostone persist throughout the day, but this study suggests that the effects may be weaker at nighttime and early in the morning. © 2011 Inoue et al, publisher and licensee Dove Medical Press Ltd.

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Inoue, K., Noguchi, K., Wakakura, M., & Tomita, G. (2011). Effects of unoprostone on diurnal variation of intraocular pressure in healthy volunteers. Clinical Ophthalmology, 5(1), 1003–1005. https://doi.org/10.2147/OPTH.S22527

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