Abstract: The surgical treatment for glaucoma has undergone various modifications in recent years. Filtration surgery is not the only choice for glaucoma. The term micro-invasive glaucoma surgery (MIGS) is defined as procedures that share the following features: ab interno microincision, minimal trauma, efficacy, high safety profile, and rapid recovery. The definition of MIGS mainly includes two anatomical categories. The first is Schlemm’s canal, by improving trabecular outflow (Glaukos micro-bypass trabecular iStent, Hydrus Schlemm canal scaffold, Ab interno trabeculectomy trabectome, excimer laser trabeculostomy). The second is the suprachoroidal space, by improving the uveoscleral outflow through a connection between the anterior chamber and the suprachoroid (Cypass suprachoroidal micristent). This article will review the published literature and summarize clinically relevant information about above novel or emerging surgical techniques for the treatment of open-angle glaucoma and to describe indications, advantages and disadvantages of the devices and procedures. (Ophthalmol CHN, 2014, 23: 64-68)

Key words: glaucoma/surgery, micro-invasive glaucoma surgery