For the people who have eye-problems, here is something that may be able to help. And the great part of it all is that they can do it while you are asleep. These are called the Ortho-K lenses, something worn when you sleep and taken off in the morning and thus producing better vision.

These lenses were designed to mold the shape of the cornea. When the cornea’s curvature is reshaped, the resulting flattening can be enough to compensate for myopia, or nearsightedness, as in Meghan’s case. This allows good vision without wearing glasses or contact lenses during waking hours; the lenses reshape the cornea while the person sleeps.

The introduction of these new lenses should be something great for the people wanting to improve their visual problems. The Ortho-K lenses cost from $1,900 to $4,000, depending on the difficulty of the prescription, as in cases of astigmatism or a need for bifocals.

Via

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Technology may yet offer something beneficial, particularly for the people who have poor eyesight. A new kind of contact lenses called Corneal Refractive Therapy Lens (CRT) may improve eyesight. They only need to be worn when a user sleeps after which people can look forward to better vision the following day.

There are a few drawbacks however, as those contact lens wearers with long-sightedness will not be able to use the CRT lens.

(Source) Contact Lenses

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Normally we all know that contact lenses were made to help us see things better, deceiving people if they don’t come up close to see that these little optical solutions are worn in lieu of the usual eyeglasses. And normally, people would take them out before they sleep since it would be entirely irritating if they would keep them on and then snooze.

To help broaden the reason for people to make sure that they remove these contact lenses, it has been proven that these can cause eye infections while you are sleeping if you fail to do so.

But like technology, there is a new breed of contact lenses that can be used only when you sleep and have been called Overnight lenses.

Although they should be worn every night, it takes a few days for the effects to wear off completely. In theory, you could avoid wearing them for a night or two, although your vision would gradually deteriorate.

This technique, known as orthokeratology, has existed for centuries. It’s thought the Chinese slept with small weights or sandbags on their eyelids to reduce short-sightedness.

‘But until recently,’ says Dr Susan Blakeney, optometric adviser to the College of Optometrists, ‘it has been considered unreliable, as there was never any guarantee the lenses would work.

‘Since then, techniques such as corneal topography – where the curve of the cornea is measured – have developed. This means lenses can be made to fit the curve of each person’s eye very accurately.’

(Source) Mail Online

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