Also known as Ortho-K or Overnight Vision Correction, Orthokeratology refers to the correction of eye shape or cornea by creating contact lenses that are gas permeable. It has the potential to reshape the cornea and thus reduce refractive errors like hyperopia and myopia. Orthokeratology is an alternative to using glasses or undergoing refractive surgery. If you are suffering from Myopia with -6.00 diopters, then you are a suitable candidate for it. Tissue growth or propagation studies suggest that epithelial cell adjusts in response to any foreign particle. The great proximity of CRT lens to the cells stimulates or affects cellular growth whereby less proximity is associated with more growth and more proximity to cellular repression. The cornea of the eyes is very sensitive to even minor changes and is responsible for at least 60% of eye focusing power.
For focused vision and for cornea correction, Ortho-K is an effective treatment. With the specially shaped lens, the cornea is gently pressed and reshaped slowly and gradually. This, in turn, promotes focused vision. This corrective effect at least lasts for 72 hours and is the practical way of eyesight correction. When compared to several other eyesight correction mechanisms, Orthokeratology may reduce the chance of eyesight changes in future. The result is somewhat like surgery or surgical correction despite no surgery is done.
What Is Orthokeratology?
As already stated, Orthokeratology is a non-surgical way to reshape the cornea for vision correction. It is effective and too easy. Here in the non-surgical procedure, special contact lenses are designed for reshaping the curvature of the eyes. This, in turn, improves the vision of the person. It corrects the vision whereas you don’t depend on eyeglasses. You must wear a gas-permeable contact lens overnight. When you are asleep, the lens shapes the cornea or the surface of the eyes such that you can clearly see the following day.
The Purposes of Ortho-K Treatment
There are mostly two purposes of Ortho-K. It helps to rectify refractive errors like astigmatism, short-sightedness and hyperopia. The primary purpose is correcting refractive errors resulting in astigmatism, short-sightedness or hyperopia. It may also rectify the eye condition presbyopia. It may also slow down the progression of myopia. The cornea reshaping contact lens can be worn overnight or wherever you want. As the effect lasts for a few hours, it is better to wear it from time to time. The benefits one gets from Ortho-K differs from case to case. Any type of corneal reshaping lens falls within the category of Ortho-K.
The Various Vision Problems Ortho-K Can Address
It can correct a variety of vision problems including shortsightedness. Anyone who is having moderate myopia is a suitable candidate for Ortho-K. It can correct the lesser degree of presbyopia, hyperopia and astigmatism. If you are not willing to wear glasses, you may go for it. Generally, the kids or young adults who want to move glass-free, they are a suitable candidate for it.
The Role of The Optometrist
An optometrist is the one who fits the contact lenses for Orthokeratology. He is the one who carries out lens fitting or Ortho-K fittings. A contact lens technician is equally capable at this. 93% of patients have attained good results or attained 20/32 vision. Before using contact lenses, the eye doctor measures the curvature of your eyes. Upon insertion of the lens there may be a slight discomfort but not at the later stage.
Till the eyes get completely corrected, you may have the problem of blurred vision. It takes time to fit the lens and some fees will be charged by the eye doctor.