Research progress on the biomechanical properties of trabecular network in the pathogenesis of glaucoma

Trabecular network, as the first resistance site of the aqueous humor outflow pathway, plays an important role in the regulation of intraocular pressure.Alteration of the biomechanical properties of trabecular meshwork may affect the aqueous humor outflow of filtration system and is of great importance in the pathogenesis of primary open-angle glaucoma (POAG).There may be a correlation between intraocular pressure and mechanical properties of trabecular meshwork, but the current research shows that the mechanical properties of trabecular meshwork are mainly affected by genetic and gene mutation, age, extracellular matrix and cytoskeleton components, lysophosphatidic acid, low dexamethasone, Rho-related protein kinase inhibitors and other factors.In addition, other intraocular diseases may affect the mechanical properties of trabecular meshwork.Under mechanical traction, the strain produced by trabecular meshwork may indicate the molecular mechanism of aqueous outflow, the regulation mechanism of outflow pathway and the pathogenesis of POAG under high intraocular pressure.The biomechanical properties of trabecular meshwork will provide a more powerful theoretical and experimental basis for the early diagnosis and treatment of glaucoma.This paper reviews the status of research on trabecular meshwork biomechanical measurement methods, influencing factors and sensing pathways of trabecular meshwork cell, in order to further elaborate the etiology, pathogenesis and treatment of POAG.

Trabecular meshwork; Glaucoma; Biomechanics; Aqueous outflow; Conduction path