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Hyperopia w/ Astigmatism


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Hyperopia w/ Astigmatism, Charles - Tallahassee, FL, 9/14/2005
not a lasik candidate, ace - wpb, FL, 9/14/2005, (#1)
Response, Glenn - Sacramento, CA, 9/14/2005, (#2)
CLE with AcrySof Restor Lense, Karina - Quito, AL, 10/17/2005, (#3)
Response, Glenn - Sacramento, CA, 10/20/2005, (#4)

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"Hyperopia w/ Astigmatism"
Posted by Charles - Tallahassee, FL on 11:54:41 9/14/2005
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I have high/strong hyperopia with high/strong astigmatism and want to know my options. My prescription is;
Right: +6.00 -6.50 Axis 167
Left: +6.00 -7.00 Axis 180
I’ve been told Laser surgery is not a real option due to drooping corneas. Has Phakic IOL been approved for my prescription yet? Is CLR my only recourse?
My prescription has been stable for a number of years.

Thanks,

Chaz

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1. "not a lasik candidate"
Posted by ace - wpb, FL on 19:48:39 9/14/2005
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with that pescription, you arent a candidate, not even close. I have read much about lasik and hyperopic astigmastim is tricky to treat. +4 or +5 hyperopia with around 2 diopters of astigmastim is about the limit. IOLs can address your hyperopia but I have not read much in toric IOLs.
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2. "Response"
Posted by Glenn - Sacramento, CA on 21:31:30 9/14/2005
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You really don’t seem to be an ideal candidate for much of anything.

Your hyperopia and astigmatism are much to high for current cornea-based surgery such as LASIK, IntraLASIK, PRK, LASEK, or Epi-LASIK.

A phakic intraocular lens (P-IOL) probably will not work because with that amount of hyperopia it is doubtful that you have enough room in the anterior segment of the eye for the P-IOL.

Refractive Lens Exchange (RLE) could resolve the hyperopia, but will not be able to resolve the very high astigmatism.

To be able to even have the possibility of seeing well enough to function without glasses, you would probably need a combination of RLE and laser eye surgery. RLE to get the hyperopia and laser to get the astigmatism.

That is a lot of manipulation of your eye and RLE is probably not wise until you are over age 40 or have become fully presbyopic.

Glenn Hagele
http://www.USAEyes.org

I am not a doctor.

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3. "CLE with AcrySof Restor Lense"
Posted by Karina - Quito, AL on 17:43:32 10/17/2005
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Hi, I´m Karina and I have a problem like yours. I've searched Internet a lot and I have found that there is an option for us, it´s name is AcrySof Restor Lense http://www.acrysofrestor.com/apodization-diffraction/restor-lens.asp. It is an IOL that replaces the natural lense and replaces the natural accomodation of our natural lense. It has been used for people who have cataracts, but can be applied to correct refractive problems too. The problem is that it does not correct the astigmatism. The surgery has to be complemented by lasik but as you see, there is a chance.

Karina

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4. "Response"
Posted by Glenn - Sacramento, CA on 13:20:06 10/20/2005
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The ReSTOR lens does not correct astigmatism, so both lens-based and cornea-based surgery would be required for this person to have even a chance of life without glasses. As I said, that is a lot of manipulation, but may be what the patient chooses.

Multifocal intraocular lenses (IOLs) like the ReSTOR and its predecessor the Array IOL have a bad habit of causing loss of contrast sensitivity and halos around light sources. ReSTOR reduced the halo problem by adding a monofocal ring at the outer edge of the IOL, thereby reducing the percentage of the IOL that is multifocal. Think of a target with the outermost ring being much wider than the center rings. The monofocal ring is very dependant upon pupil size. If the person has small pupils, there will be virtually no advantage from the monofocal area of the ReSTOR lens. Reducing the multifocal area of the IOL means that mid-near vision is limited. For someone who uses a computer long hours, the ReSTOR may not be ideal.

There are many different IOLs that have specific advantages and disadvantages. None are bad, but all can be applied to the wrong situation. A conversation with your doctor about your particular vision needs will help determine if the ReSTOR or something else is best suited for your needs. That is, of course, if any refractive surgery is appropriate at this point.

Glenn Hagele
http://www.USAEyes.org

I am not a doctor.

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