Blurry vision is quite common in the United States currently. A major survey conducted by researchers from National Eye Institute says that about half of all US adults are suffering blurry vision. In fact, blurry vision is the most common symptom of refractive errors of the eyes, including nearsightedness, farsightedness and astigmatism. These errors can affect young adults, middle-aged individuals and older adults of all ethnicities. Researchers of the survey estimate that eye care addressing refractive errors costs the US government between $3.8 billion and $7.2 billion every year.

Women over 50 are more susceptible to mild or severe dry eye. Women in this older group are showed to suffer dry eye at a percentage of 7.8, versus a 4.7% among men. Dry eye in women involves various causes. Common problems such as inflammation can cause tear reduction in the eye, which brings dry eye. Particularly, women after menopause may have unstable tear film caused by abnormal chemical signals. Hormone androgen decease can also be a possible cause of dry eye in older women. But no evidence has showed that estrogen hormone replacement therapy is effective in alleviating dry eye in women.

Currently, about 1.68 million men above 50 in the United States are suffering dry eyes. And this number is estimated to be more than 2.79 million by 2030. As a result, dry eye research and prevention are quite critical. Until now, some studies have found a link between dry eye in men and their ages. In general, hypertension, benign prostatic hyperplasia and antidepressant use all can be risk factors of dry eye in men.

Dry eye is very common among people at all ages, resulted from chronic lack of sufficient lubrication and moisture in the eye. Dry eye syndrome has various symptoms such as persistent dryness, foreign body sensation, scratching and burning eyes, which may lead to subtle but constant irritation or ocular inflammation of the front eye tissue. To diagnose dry eye syndrome, your doctor may use a Schirmer test to measure the amount of tears.

One of the most common eye problems that affect millions of people is dry eye, which has possible causes including allergies, refractive surgeries as well as other eye diseases. Medications such as eye drops and ointments are usually used to treat dry eye.