Contact Lens Basics

Orthokeratology Contact Lenses

Though every vision problem brings along a certain set of constraints, it is vision problems like near sightedness that cause maximum inconvenience. It becomes difficult for people suffering from near sightedness to see things as they go to sleep without contact lenses. Steps in- orthokeratology contact lenses! These special contact lenses help correct your nearsightedness even as you go to sleep.

How do they work?
Orthokeratology contact lenses are special contact lenses that gently change the shape of the surface of your eye. So, even after you remove the lenses, you are still able to see clearly. However, the effect of these contact lenses is temporary. This means that you will be able to see clearly without the contact lenses on for at least a day or two. But, it is important that you wear these special contact lenses each night for them to have effect.

What to expect?
If you are considering using Orthokeratology contact lenses, it is important that you know the kind of results you can expect from them. A recent study by the FDA revealed that using these contact lenses can offer 20/32 vision or better. Another clinical study conducted by FDA on a VST design revealed that 95 percent tested under the study achieved 20/40 or better. So, you can expect your vision problems to be sorted on using these contact lenses.

Do you need Orthokeratology contact lenses?
Anyone who is suffering from nearsightedness can benefit from these contact lenses. Though almost everyone dealing with the problem can use these lenses, it best suits people who participate in sports or are continuously surrounded by dirty environments.

The benefits of Orthokeratology contact lenses are near similar to LASIK. This makes them apt for people who need LASIK. Teens and adolescents who are not eligible for LASIK can also benefit from these contact lenses.

Using Orthokeratology contact lenses
Since these are prescription contact lenses, you cannot have them without the approval of an expert. The curvature of the cornea of the eye is measured with the help of an instrument known as corneal topographer. This is a painless procedure and does not take much time.

Since these special contact lenses aim at changing the shape of your eye surface, you may have to deal with some side effects initially. You may experience glare and halos that reduce eventually.

It typically takes two to three weeks before the contact lenses can change the diopters of myopia. Once the contact lenses have managed to make the desired changes, you will need to continue using these lenses when you sleep or during the day for some time. This will help maintain the prescription.

However, if you discontinue using these lenses, the eye shape will regress to its original shape. This means that you will have to bear with the problem of near sightedness again.