Glaucoma is caused due to rise in the intraocular pressure, if persists may lead to permanent eye damage.This increased pressure damages the optic nerve which transmits message to the brain High pressure is built due to the blockage of the trabecular meshwork which results in the accumulation of aqueous humor. Depending on the size of trabecular meshwork blockage, glaucoma can be categorized as open angle and narrow closure glaucoma. In open angle glaucoma trabecular meshwork blockage is wider than narrow angle glaucoma. This disease results in various symptoms such as redness in eye, nausea, vomiting, narrowing in vision and pain. This disease can be diagnosed by measuring eye pressure through tonometry.