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Author: Peter Galvin


The U.S. Preventive Services Task Force (USPSTF) makes recommendations on the prevention of diseases in humans. It looks at both primary prevention, which is the prevention of a disease in someone without it and secondary prevention, which is the prevention of worsening disease in someone who already has it. It makes its recommendations based on a thorough review of all studies and research. Often, the USPSTF will periodically review the same topic in order to update its last recommendation. To do this, the Task Force will review all clinical data and studies that have been published since its...

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Dry eye disease is caused by decreased tear production, excessive evaporation of tears, or both. It leads to inflammation of the surface of the eye. This inflammation typically results in a gritty or burning sensation and blurred vision. Dry eye disease affects about 5% of the U.S. population and is more common in women and individuals older than 50 years. Risk factors include the use of contact lenses, certain medications (diuretics, antihistamines, isotretinoin, and some antidepressants), connective tissue diseases like Sjogren syndrome, and a history of stem cell transplant. Dry eye disease...

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