There are many factors that could contribute to glaucoma, but one common cause is the increase in eye pressure. Elevated eye pressure is caused by the buildup of fluid that flows throughout the inside of the eye. When there’s an overproduction of the fluid and it doesn’t drain out of the trabecular meshwork at the angle where the iris and cornea meet, eye pressure increases, resulting in glaucoma. This can be treated with eye drops that can lessen eye pressure. However some complex cases may require laser surgery.