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Meibomian Gland Dysfunction, or MGD, is considered the leading cause of dry eye disease. Meibomian glands, named after the German doctor who studied them, make an oil called meibum. Meibum, water, and mucus form the three layers of tear film, the fluid that keeps your eyes moist. The oil helps prevent the water layer on the eye surface from drying out.

Changes to the amount or quality of the oil, or to the glands themselves, can lead to MGD. As WebMD explains, It's often the result of a combination of things. The most common type, obstructive MGD, happens when the gland openings get clogged, and less and less oil reaches the eye surface.

Your eyes may seem healthy, but a dilated eye exam is the only way to be completely sure.

Do you know what might be lurking in that waterpark or pool? 

Parasitic bacteria. Gross, yes. And dangerous, too. According to a CDC report, Outbreaks Associated with Treated Recreational Water:

“…about 500 disease outbreaks in treated recreational water were reported between 2001 and 2014. Those outbreaks caused more than 27,200 cases of infection and eight deaths in 46 states and Puerto Rico. Pathogens (disease-causing microorganisms) accounted for most of the outbreaks (94 percent), while chemicals in the water were linked to the remaining outbreaks.

Whether you are swimming in the ocean, pool, lake or waterpark, infections can be dangerous to your eyes as well. Many types of bacteria live in water, and can cause serious problems.

Glaucoma is a slow, progressive and asymptomatic disease of the eye. Because it is painless and symptoms aren’t always obvious, vision loss is often not noticed until the disease is already advanced. It is the second-leading cause of blindness (after diabetes) for Caucasians and the leading cause of blindness for African-Americans in the United States. How is Glaucoma diagnosed?

We all know our bodies change as we age, whether we like it or not! But there are things you can do to stay on top of these changes and proactively manage your health. 

As you age, you will become more vulnerable to age-related eye disease and conditions. According to the National Eye Institute, it is recommended that you have a comprehensive dilated eye exam at age 50, or before – by an experienced ophthalmologist.