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J Schipper -'s Articles in Vision

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Contact Lenses And Why We Wear Them We wear contact lenses mainly because we are vain. But, they come in handy for any kind of sports, people even wear them while swimming although you have to watch they don't float out. The Inventor of the contact lens concept was Leonardo da Vinci in 1508,who sketched and described several forms of contact lenses. Hard contact lenses Hard contact lenses are manufactured from a rigid material, PolyMethylMethacrylate (PMMA). This substance is also combined with othe... What Are Cataracts And How Do You Prevent Them? As the population ages, cataracts are becoming a growing health concern. A cataract is a clouding of the eye lens to such an extent that it affects vision. The majority of cataracts develop due to the aging process, and by age 80, more than half of all Americans have them. However, there are also other type of cataracts: secondary cataracts, which form after surgery for other ophthalmic diseases such as glaucoma; traumatic cataracts, which can develop after an eye injury; ...

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