Glaucoma: an extension of various chronic neurodegenerative disorders.

The eyes are the window of the brain; various pathologies of the eyes can be explained on the basis of neurological disorders and vice versa. Today, our only approach for the management of glaucoma is intraocular pressure (IOP) reduction, whether by pharmacological or surgical methods. Available methods may effectively control IOP but fall short of stopping the progression of glaucoma. IOP is just one of the risk factors our therapy addresses, so we need to work towards shifting our approach towards addressing other factors involved in the etiopathogenesis of the disease. Pathogenesis of glaucoma at molecular level can be compared with that of common neurodegenerative diseases like Alzheimer's and Parkinsonism. Targets for therapeutic intervention in chronic neurodegenerative diseases and glaucoma include apoptosis, axonal transport, free radical damage, role of polyunsaturated fatty acids, chaperones, gene regulation, etc. p38MAPK is a common pathway involved in all the neurodegenerative disease and glaucoma as well, and more research in this direction can be really beneficial for the development of novel diagnostic and therapeutic measures.