The Aging Eye: Facts About Glaucoma

Often referred to as "the sneaky thief of sight," glaucoma is the second leading cause of preventable blindness worldwide. It is important to note that glaucoma is the leading cause of blindness among African American and Hispanic descendants. A glaucoma is a group of eye conditions that cause damage to the optic nerve.

In most cases, this damage is associated with a dangerous build-up of internal eye pressure, known as intraocular pressure (IOP). Because there are no symptoms or warnings, up to 40 percent of vision can be lost without a person realizing it. If you are looking for the best San Diego Elmiron lawyers visit

There are two main types of glaucoma: primary open-angle glaucoma (POAG) and closed-angle glaucoma. Open-angle glaucoma is the most common type. Its cause is unknown; however, it tends to run in families. The risk is higher if a parent or grandparent has open-angle glaucoma. With this type of glaucoma, the intraocular pressure (IOP) rises due to blockage of the channels or angles that allow the clear fluid behind the eye to drain. The resulting pressure damages the optic nerve, making it difficult for visual information to be carried to the brain.

The first sign of POAG is usually the loss of peripheral or lateral vision, which may go unnoticed until the end of the disease. That's why annual routine eye exams are essential. During this exam, an ophthalmologist dilates or enlarges the pupil of the eye with dilating drops. Once dilated, the appearance of the optic nerve can be studied. The ophthalmologist also performs a procedure called tonometry to monitor eye pressure and a visual field test to determine whether or not loss of peripheral vision has occurred.

Again, while glaucoma is a serious condition, early detection is the key to preventing further vision loss or blindness. Having routine annual eye exams not only helps in detecting this eye disease but also increases the ability to keep your eyes healthy for years to come.


This entry was posted in Business and Management and tagged , . Bookmark the permalink.