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Intraocular pressure refers to the tissue pressure within the human eye and is typically caused by the continual drainage and production of aqueous humors, states MedicineNet. The eye pressure is usually shown as millime... More »

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Normal eye pressure is between 12 and 22 millimeters of mercury, according to Glaucoma Research Foundation. In the United States, the average intraocular pressure is between 14 and 16, states The Glaucoma Foundation. More »

www.reference.com Health Medical Ranges & Levels

The Glaucoma Research Foundation states that normal intraocular pressure ranges from 12 to 22 millimeters mercury. It is normal for eye pressure to vary somewhat from day to day and even hour to hour. More »

www.reference.com Health Medical Ranges & Levels
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Some causes of eye pressure elevation are an eye injury, side effects of certain medications, different eye problems and when the production and drainage of the aqueous humor is not balanced, as noted by All About Vision... More »

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A human eye color chart helps determine eye color. It was once used to calculate the odds of babies having certain eye colors based on the eye colors of their parents and grandparents. More »

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Lens implants are prosthetic devices embedded in the human eye following surgical removal of the eye's natural lens due to the presence of cataracts. Generally referred to as intraocular lenses, or IOLs, these synthetic ... More »

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Natural factors that can cause eye pressure include an overproduction of aqueous, eye injuries, slow aqueous drainage and medications containing steroids. A person's ethnicity, age and family medical history are also con... More »

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