ArticleFrontiers in ophthalmology2026
Application of negative pressure to the periocular microenvironment to lower IOP in patients implanted with telemetric IOP sensor: report of two early studies of the FSYX ocular pressure adjusting pump.
Article in Frontiers in ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: The purpose of this study was to determine the effect on intraocular pressure (IOP) of applying negative pressure (NP) to the periocular space, as measured by an intraocular IOP sensor in human eyes. Methods: Eyes with open-angle glaucoma (OAG) and previously implanted with the eyemate Results: All seven study eyes demonstrated immediate and sustained reductions in IOP during NP application. In Eyemate 1, three study eyes had individual mean steady-state IOP reductions of 31%, 51%, and 23% from baseline. In Eyemate 2, four study eyes had a mean 8-hour IOP reduction of 20% from baseline. All patients tolerated goggle wear and NP application. Conclusion: These studies provided early proof-of-concept evidence that NP application to the periocular space lowers IOP, as measured by an implanted intraocular sensor, and was well tolerated over short-term use. Given the small, uncontrolled or open-label designs, these findings are hypothesis-generating; larger, controlled studies are required to confirm efficacy and characterize safety.
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