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Some types of contact lenses are especially known for curing various
vision disorders. Two of them are toric and bifocal contact lenses.
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The elderly are prone to developing the condition called presbyopia.
This is an eye infection in which the eyes are not able to focus on
incoming light.
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The term 'Bifocal' refers to two points of focus utilizing two eye
powers in one lens. The bifocal contact lenses are being used since
1999 by patients suffering from presbyopia-- a vision disorder
characterized by an inability to read fine prints, like reading a book
or newspaper.
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Not so long ago, people who had nearsighted or farsighted eye problems
had to rely on eyeglasses with thick lenses. The frames of these
eyeglasses were heavy.
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