Targeting Schlemm’s Canal in the Medical Therapy of Glaucoma: Current and Future Considerations

Advances in Therapy - Tập 34 - Trang 1049-1069 - 2017
Vanessa Andrés-Guerrero1,2, Julián García-Feijoo1,3,2, Anastasios Georgios Konstas4
1Department of Ophthalmology, Sanitary Research Institute of the San Carlos Clinical Hospital, Madrid, Spain
2Ocular Pathology National Net OftaRed of the Institute of Health Carlos III, Madrid, Spain
3Department of Ophthalmology, Faculty of Medicine, Complutense University of Madrid, Madrid, Spain
41st and 3rd University Departments of Ophthalmology, AHEPA Hospital, Aristotle University of Thessaloniki, Thessaloniki, Greece

Tóm tắt

Schlemm’s canal (SC) is a unique, complex vascular structure responsible for maintaining fluid homeostasis within the anterior segment of the eye by draining the excess of aqueous humour. In glaucoma, a heterogeneous group of eye disorders afflicting approximately 60 million individuals worldwide, the normal outflow of aqueous humour into SC is progressively hindered, leading to a gradual increase in outflow resistance, which gradually results in elevated intraocular pressure (IOP). By and large available antiglaucoma therapies do not target the site of the pathology (SC), but rather aim to decrease IOP by other mechanisms, either reducing aqueous production or by diverting aqueous flow through the unconventional outflow system. The present review first outlines our current understanding on the functional anatomy of SC. It then summarizes existing research on SC cell properties; first in the context of their role in glaucoma development/progression and then as a target of novel and emerging antiglaucoma therapies. Evidence from ongoing research efforts to develop effective antiglaucoma therapies targeting SC suggests that this could become a promising site of future therapeutic interventions.

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