Contact lenses are visual aids are placed on the surface of the cornea to
improve refractive errors. Use of contact lenses provide comfort on the move,
do not restrict the field of vision, and better aesthetically. Nonetheless, the use of
contact lenses can cause complications from mild to blindness. These complications can
be prevented by running the principle of proper use of contact lenses. Users lens
contacts need to conduct preliminary checks to determine eye disorders such as dry eye,
eye infections, cataract, glaucoma, as well as the use of drugs that can reduce the production of water
eyes. Other conditions to consider are allergies, diabetes mellitus, pregnancy, menopause,
respiratory infections and chronic immunocompromised conditions. Cleanliness and compliance with
the bad also is contraindicated use of contact lenses. The introduction of how to use
and care of contact lenses properly
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