FOREWORD Successful interventional glaucoma remains a sought-after goal for the glaucoma clinician for many reasons. Medical costs, compliance, and adherence remain major barriers for the treatment of our patients. A truly definitive treatment for glaucoma is most likely to be largely surgical, as it is doubtful that patients will continue to use glaucoma drugs in the future for anything other than transient lowering of intraocular pressure. In the coming era, it seems probable that neuroprotection and neurorestoration will be combined with MIGS to lower pressure. Cost and access to medications, as well as cost-effectiveness are all reasons pushing towards surgery becoming the prime method of treating adult glaucoma, as is already the case for pediatric glaucoma.
However, this could change if medications were to have a demonstrable beneficial effect upon the cells of the eye, whether corneal or trabecular. Cytoprotection, trabecular protection, and even canaloprotection may lie ahead to join the concept of neuroprotection. In fact, if medications were actually regenerative, it is likely that that they would become a routine component when MIGS is performed. At present, no such beneficial cellular treatment is known, but new medications based on neuroprotection and trabecular meshwork restoration may be on the immediate horizon. It has been suggested that netarsudil would have beneficial effects for both the trabecular meshwork and the optic nerve. Nitric oxide compounds may offer a similar possibility; much remains to be learned as of this writing.