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Medical Forum / General / Vision / June 2005Anyone have more info on Orthokeratology (aka Ortho-K) ???
also, has anyone here had the experience of this technique? I haven't but you can find lots of information on the online encyclopedia at http://wikipedia.org It has quite a lot about vision in subcategories of "Ophthalmology" like glaucoma, retinal detachment, myopia, etc.. If you haven't heard about it yet its an interesting site. It has millions of entries and anybody can contribute. If you don't like what you read you can correct it and insert your own opinion. Also each page has a discussion section at the top where you can argue with people you disagree with Dear Jambo, I have not have the "experience" of this technique, but the background is that it was used by pilots to clear vision from about -0.5 diopters to about -3 diopters. It costs about $1600, but depends on how many "retainers" are required to "keep" 20/20 vision. There are now "over-night" ortho-K, were you sleep in the lens and keep 20/20 in the day time. I am certain there are sites discussing Ortho-K (by other names) for your interest and others will post reference to them. Otis Jambo, I am having an ortho-k lens fitted this afternoon, and will be wearing it overnight. I will let you know how I get on. >From my initial consultation with the optician, my hopes are high that this contact lens should help my unusually shaped astigmatism when other toric lenses have failed. The lens is hard, and is shaped specifically for the wearers eye. The front of the lens is slightly flat, putting slight pressure on the soft cornea and therefore changes it shape to provide 20/20 vision. Apart from my unusual prescription, wearing this lens overnnight is better than wearing regular lenses throughout the day. Regular lenses cut off some oxygen to the eye, are easy to get dirty, and can move around in the eye if they dry out. Wearing an ortho-k lens removes these problems as they eye is closed during the night. Of course, all this is useless unless the lens is comfortable to sleep in and successfully corrects the prescription. Both aspects I can feedback on tomorrow morning! David Dear David, Could you give us your initial prescription -- and an estimate about the time it will take to clear to 20/20. Also an estimate of the cost of Ortho-K. Thanks, Otis > Dear David, > [quoted text clipped - 6 lines] > > Otis Yes David, ..please let us know how it goes... comfort, price, etc...much appreciated! I was particularly interested in knowing how long the process would take to achieve perfect vision, and how frequently will the retainer lenses have to be worn after the fact. Jambo >> Dear David, >> [quoted text clipped - 6 lines] >> >> Otis Otis, First of all, I have very unusual eyes! So be warned! My left eye is a lazy eye and has a nominal prescription around +0.5. I am not having an ortho-k lens fitted for this eye. My right eye is my strong eye, but the prescription is -2.75. It has a slight astigmatism (cannot remember the exact number) which toric contact lenses could not correct. For this reason, I wore spectacles. I had given up on contact lenses, and was wary of lasering my cornea to bits! A magazine article alerted me to ortho-k, and a local optician offered it. I had the initial appointment last week, and the lens fitted this afternoon. I am to wear it sleeping tonight. The shock of having a hard contact lens was not as bad as I expected. I am wearing it for a couple of hours now so I get used to it - don't want to have a sleepless night! I think it takes a week or so for it to be fully comfortable. I have to wear the lens to the optician for another appointment at 9:15am tomorrow. She will then check everything went to plan. I think there are different types of ortho-k lenses. I am using AOK (Accelerated Ortho-K) and - hopefully - most of the correction should be done by tomorrow morning! If there is -0.5 or -1.0 diopters still to fix, I will be given a contact lens to use during the day. I am in the UK, and the initial cost was £149 (around $270). In three months time, I will commence a monthly payment of £25 ($45) which will pay for my next lens. The lens has been in for around 30 mins, and it's a bit blurry, but not at all sore. Will let you know tomorrow how I got on. David Do tell us how it turns out. I've been toying with the idea of investing in this system, but have been pretty leery of it. w.stacy, o.d.
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