Orthokeratology is,
The temporary reduction of myopia achieved by the programmed
application of contact lenses to reshape the cornea.
Modern orthokeratology (ortho-k) achieves this using specially
designed reverse geometry gas permeable [GP] ortho-k shaping
lenses worn during sleep.
Principle
The ortho K lens principle is based upon the fact that myopia is caused by a corneal convexity and through the lens this convexity can be subdued a little bit. It has the same effect as doing a LASIK or laser surgery. However, when the cornea returns to its normal shape, the lens has to be worn again. That period can vary from people to people. However, the average is 2-7 days and it can last longer if worn for a longer period of time
Benefits for Ortho-K LK Lens
The alternative way of myopia management, not throughout surgery
■ Higher safety than surgery (PRK), Low critical side effect
■ Can be reversible after 3~4 weeks, discontinuing lens wear
■ Effective to reduce myopia at every age, especially juvenile
■ Can be controlled myopia progression as well as myopia reduction
■ Easy to reduce myopia by overnight wear of lenses
■ Not necessary to wear lenses at day time
Limitations
There are no known side effects until now. Except the discomfort when wearing a normal RGP lens. Because the cornea returns to its position, please take off the lens and consult an ophthalmologist when any problems arise. If you follow their instructions, it will recover 100% in days. It is also good because there are no limits to it. Whether you are a man or woman, there is an effect in stopping myopia from getting worse. Therefore it is very comfortable for growing children, people incapable of surgery, athletes, pilots, stuntmen, artists, captains of air flights who can't wear lens all the time
Target Group
No limits to the use. However, people with severe dryness in the eye can be applied, - with high myopia going beyond 5 D - with higher than 2 D astigmatism, consult an ophthalmologist first.
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