According the article.

According the article, is cataract, the most common cause of blindness in the world today and is also the leading cause vision loss in the United States, responsible for 60 % of total Medicare costs related to vision. A cataract occurs when the lens of the eye becomes cloudy or opaque, to poor vision or loss. Cataract is common in the elderly. The effect of age – cataract is likely to increase as the U.S. Population continues to age, the article says. However, few accurate estimates of the prevalence of cataract have been made in the United States at the national level.

Accurate estimates of the of cataracts considerably significantly in the coming decadesThe number of people affected in the United States of cataract is estimated 30.1 million people in the next 20 years, rising an increase of 50 %, according to an article in the April issue of Archives of Ophthalmology, a theme issue on blindness, and one of the JAMA / Archives journals.Amazing , however, if obstructions were placed on his blind hand, he was in a position of avoiding them – although it ever reported that it saw. – The behavior of the patients shows he sensitively to the situation of obstructions his is completely unaware of, tells Striemer. The patient appeared as surprised as we that they in those add able react obstacles Goodale Goodale.

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