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Medical Author:

Andrew A. Dahl, MD, FACS

Andrew A. Dahl, MD, FACS

Andrew A. Dahl, MD, is a board-certified ophthalmologist. Dr. Dahl's educational background includes a BA with Honors and Distinction from Wesleyan University, Middletown, CT, and an MD from Cornell University, where he was selected for Alpha Omega Alpha, the national medical honor society. He had an internal medical internship at the New York Hospital/Cornell Medical Center.

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Medical Editor:

William C. Shiel Jr., MD, FACP, FACR

William C. Shiel Jr., MD, FACP, FACR

Dr. Shiel received a Bachelor of Science degree with honors from the University of Notre Dame. There he was involved in research in radiation biology and received the Huisking Scholarship. After graduating from St. Louis University School of Medicine, he completed his Internal Medicine residency and Rheumatology fellowship at the University of California, Irvine. He is board-certified in Internal Medicine and Rheumatology.

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Most types of glaucoma cannot be prevented. Vitamins and other nutritional supplements do not play a role in the prevention of glaucoma. While vision loss due to glaucomatous optic nerve damage cannot be recovered, with appropriate treatment, further vision loss can usually be prevented.

Those types of secondary glaucoma resulting from eye injuries or certain diseases, such as diabetes and uncontrolled hypertension (high blood pressure), may be preventable or even avoidable with certain measures, such as protective eyewear to avoid eye injuries and proper management of diabetes and uncontrolled hypertension.

One type of glaucoma, acute angle-closure glaucoma, can sometimes be prevented if a laser procedure is performed prior to its onset. To determine if a person is at risk for acute angle-closure glaucoma, they should see an ophthalmologist (a medical doctor who specializes in eye care and surgery) for an eye examination.

Must Read Articles Related to Glaucoma FAQs

Acute Angle-Closure Glaucoma Acute angle-closure glaucoma is caused by a rapid or sudden increase in pressure inside the eye, called intraocular pressure (IOP). The condition requires treat...learn more >>

Adult Glaucoma Suspect Glaucoma is usually high pressure inside the eye that damages the optic nerve and can result in permanent vision loss. Not all 3 criteria (that is, high pressur...learn more >>

Angle Recession Glaucoma Traumatic glaucoma refers to a group of ocular disorders that occur after the eye undergoes trauma. Following this trauma, different mechanisms can cause an abn...learn more >>

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