Blocked oil glands and eyelash growth problems are causes of hurting eyelashes, but blepharitis, a medical condition that affects eyelids, is the major cause, according to Mayo Clinic. Blepharitis results when oil glands... More »

Medical conditions such as blepharitis, episcleritis, iritis and uveitis cause bloodshot eyes, according to the Mayo Clinic. Additional causes for red, irritated eyes include hay fever, viral or bacterial conjunctivitis,... More »

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The exact cause of macular degeneration is not known though there are several known risk factors including advanced age, family history of the condition and poor diet, according to Mayo Clinic. Obesity, cardiovascular di... More »

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Experts attribute the causes of dry eyes to several factors, including hormones, problems with tear production due to a medical condition, age, damage to the tear glands and even some types of eye surgery. Dry eyes can a... More »

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Although the exact cause of breast cancer is unknown as of March 2015, the condition always begins with the abnormal growth of breast cells, according to Mayo Clinic. A number of hormonal, environmental and lifestyle ris... More »

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Age-related eye changes are the most common cause of dark spots in the eyes, or floaters, though inflammation in the back of the eye, bleeding in the eye and a torn retina also cause the condition, notes Mayo Clinic. Peo... More »

Eye twitching is a repetitive, involuntary movement of the eye muscles that may be caused by stress, anxiety, fatigue, caffeine or be a sign of a medical condition, including blepharitis, dry eyes, pinkeye or light sensi... More »