contact lenses' past and future
HOW CONTACT LENSES CORRECT VISION
Vision depends on light beams entering the retina.When light doesn't meet at the same point,vision becomes blurred.
PROCEDURE
To correct the eye problem lens needs to be fixed in front of the eye to focous the light properly so that light beams converge at retina.
ADVANTAGES
The inside surface of the contact lens fitted to the shape of ur eye size so it should not shake where as the outer part is shaped to proper curve.There are contact lenses that can be worn for a week or for a month,this avoid daily cleaning and is much more convinieant
CONSTRUCTION OF CONTACT LENSES
It is made of very hard plastic,and is kept in saline solution drops for keeping cool and moist.With out this contact lens will be so irritatable and can cause discompfort.It require less attention and less maintanence it moves slightly with each blink nd this make sure that eye is always moist and prevent foreign particles to enter the eye and cause irritation.
USES
Its main use is to cure MYOPIA and HYPEROPIA and even it is widely used to cure ASTIGMATISM and other eye faults.
LASIK
LASIK is meant to clear most of the problem described above and capable of avoiding lenses and glasses.So most people opt for doing LASIK instead of lenses and glasses
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