Posted Jun 06, 2007 at 06:08AM by Sally B. Listed in: Science Tags: Orthokeratology
Ó

Contact lenses - Image 1Here's some good news for people who don't like to wear glasses and are uncomfortable with contact lenses: Thanks to technology, it's now possible to wake up with perfect vision. Laser surgery, you ask? Nope, not laser surgery.

Ortho-K, derived from Orthokeratology, was discovered 40 years ago by opticians after noticing that some patients gained better eyesight after they removed their contact lenses. They discovered that like braces, which are used to correct teeth alignment, vision can also be corrected by applying gentle pressure on the eye in the right places.

David Thomas, an optician who also uses Ortho-K, explains,

Ortho-K is similar to an orthodontist using a brace to straighten teeth. We take extremely accurate and detailed measurements of your eyes. We then have a pair of hard contact lenses made up with a curvature calculated to squeeze each eye gently in the right places to correct a range of short-sighted and astigmatic prescriptions.


Sounds good, especially for people who don't want to wear glasses for aesthetic reasons, and at the same time don't want to deal with the tricky handling of contact lenses AND don't want to risk laser surgery. Thomas reassures that compared to laser surgery, the effects of Ortho-K are totally reversible: eyes corrected by Ortho-K will go back to short-sightedness once the eye slowly returns to its myopic state, but this process takes a whole day, even two.

Which leads to the question: Is it safe to sleep with contact lenses still on the eyes? Taking off lenses before bedtime is normal SOP, after all. "Ortho-K lenses are gas permeable, so oxygen can get through to keep eyes in good order," says Thomas. "And wearing them at night cuts down the risk of getting dust between the contact lens and the eye, which can cause irritation with standard lenses."

There are reports of Ortho-K patients contracting eye infections which resulted in almost losing their sight. However, they were also suspected of rinsing their lenses in tap water, which is definitely a no-no even in standard contact lenses. Ortho-K also reiterates the need to be very careful when undergoing any eye treatment. As long as one follows the proper hygiene procedure, says Thomas, Ortho-K is totally safe to use.

Now, one can enjoy contact sports and swimming without any need for glasses and contact lenses, but at a considerable price: £  100 for the initial consultation and provision of the lenses, then £40 or so a month for ongoing care, plus replacing lenses every six months.


[Via Independent UK] Permalink  |   Email this  |   Linking Blogs   |   Digg It!

Bookmark / Find this article on:


4 Comments


Sort by:
   by A (Unregistered) - 2007-06-06
 » pfft

Sounds pretty pointless if you still have to put something in your eye and keep it there. Why not just get contacts? Its cheaper.

   by Advertising -
   by Red Threat 1991 (Unregistered) - 2007-06-06
 » Huh

Am im missing the point:

eyes corrected by Ortho-K will go back to short-sightedness once the eye slowly returns to its myopic state, but this process takes a whole day, even two.

So why not just wear contacts if all the work done by this is temperary?

I am open to suggestions, maby i have misenterpreted this if so plz correct!

   by SOMEONE (Unregistered) - 2007-06-06
 » HEY RED THREAT

what about people who cant where contacts due to what they do for example im a swimmer these could come in real handy for me becuz i cant where contacts in a pool


   Re: mohaas05 (Unregistered) - 2007-06-07
 » ...

well i only see four options
1. wear goggles
2. wear glasses
3. get lasik
4. use ortho-k for whatever amount of period until your eyes get back to myopic state and take them off.


Featured Content
QJ.NET Blog Network RSS Feeds
MyQJ Feed / PDA
MyQJ RSS / PDA
Blog of Blogs Feed / PDA
QJ.NET RSS / PDA
Gaming Consoles Feed / PDA
Nintendo DS RSS / PDA
PlayStation 3 RSS / PDA
PSP Updates RSS / PDA
Wii RSS / PDA
Xbox 360 RSS / PDA
PC Gaming Feed / PDA
Age of Conan RSS / PDA
Games for Windows RSS / PDA
MMORPG RSS / PDA
Tabula Rasa RSS / PDA
World of Warcraft RSS / PDA
Science Feed / PDA
Science RSS / PDA
Technology Feed / PDA
Apple RSS / PDA
Gadgets RSS / PDA
Mobile RSS / PDA
Photography RSS / PDA
Add QJ.NET
Add to My Yahoo!
Google Reader Subscribe with Bloglines
Add  to your Kinja digest Subscribe in NewsGator Online
Subscribe with Pluck RSS reader Add 'www.qj.net' to Newsburst from CNET News.com
Subscribe with SearchFox RSS del.icio.us www.qj.net
Add to Technorati Favorite! Add to My AOL
furl! it Stumble for Treehugger!