They don't work for everyone. But for many who have tried this new approach to contact lens technology, the results have been quite good.
Conventionally, contact lenses are worn during awake hours to correct vision, but this new technology (trademarked i-GO) has users wear the lenses while asleep. The lenses encourage the movement of cells in the epithelium to shift, creating a temporary correction to the users vision. The user wakes up, removes the lenses and many are able to go through the day without using eyeglasses, contact lenses or resort to laser surgery.
A journalist from the Guardian tried the lenses:
These lenses, I am told, do not usually work instantly. "We should achieve something like a 70% change within the first night of wear," says Minshull. In the early days, most users find their eyesight deteriorates by the end of the day. "You may notice a little bit of ghosting in the evening," he says. I am supplied with some -1.50 daily disposable contact lenses in case my eyesight becomes less than perfect.
After two nights in the lenses, I wake up and - hosanna! - I can see. Without lenses. Almost perfectly. The problem is at night: when it gets dark, I realise that while I can read car numberplates at a distance, my sight is distorted by electric lights, which are almost as blurry as if I had my normal vision. Street lights and car headlights are fuzzy.
The lenses only correct for up to moderate short sightedness and some astigmatism. But very cool nonetheless.
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