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  • Title: Iloprost, a stable prostacyclin analog, reduces intraocular pressure.
    Author: Hoyng PF, de Jong N.
    Journal: Invest Ophthalmol Vis Sci; 1987 Mar; 28(3):470-6. PubMed ID: 2435669.
    Abstract:
    Topical application of Iloprost caused a dose-dependent decrease in intraocular pressure (IOP) in rabbits and ocular hypertensive beagles. In rabbits, the IOP response was biphasic and miosis was observed. In beagles, there was no initial hypertensive phase, and the fall in IOP was more pronounced (up to 37%). In beagles, Iloprost did not influence pupillary diameter. A mild transient hyperemia was noted in both rabbit and beagle eyes. Iloprost led to an increase in the aqueous humor protein concentration in rabbits but not in beagles. The use of artificial tears as vehicle enhanced the effect on intraocular pressure but also aqueous protein in rabbits. The central corneal temperature was increased after application of Iloprost in both rabbits and beagles. In rabbits, tonography revealed an increase in outflow facility during both the hypertensive and the hypotensive phases. Iloprost caused a decrease in mean arterial pressure in beagles; the effect on pulse rate was inconsequential. It is suggested that similar low doses of an analog of Iloprost or carboprostacyclin that does not affect the hemodynamic equilibrium could be of value in the treatment of glaucoma.
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