How are spherical abberations caused by lasik corrected?
Tanya
It looks like I may be one of the unlucky few that now has increased spherical abberations post Lasik.
I had my surgery almost 3 months ago and I absolutely love the vision correction. During the day my vision is beautiful. Many years ago I was diagnosed with anisocoria and have unusually large pupils. When I had multiple consultations before lasik I was careful to mention this and although each facility did additional testing there was never any indication this would be a problem. I mentioned to each doctor that I already had problems with night driving (glare) and I was even shown a video that suggested that those who have night vision issues would actually see an improvement by having Lasik Eye Surgery.
Now almost 3 months out the halos and glare at night are really intense and haven't improved since the surgery at all. It is different than the night vision problems that I experienced prior to lasik and much, much worse so I know it is surgery induced. I wonder if anyone can give me advice on what to ask the doctor about corrections when I go back for my 90 day appointment. I have read that it is possible to increase the diameter of the corneal treatment area so that it matches my pupil size. I have already tried the Allergan Alphagan 0.1% eye drops the doctor suggested and they have no noticeable effect.
I don't know if this makes a difference but the equipment used on me was the Allegretto Wave for the treatment while the IntraLase created the cornea flap.
Answer
I had a little bit of refractive error after my LASIK. It is nothing fancy like higher order aberrations. I just have a little bit of myopia. My vision during the day is fine but I can't see to drive at night. My -0.50 glasses clear every thing up. Doctors are often reluctant to prescribe glasses after surgery because it feels like failure. Since I am an optometrist I prescribed them for myself.
I had a little bit of refractive error after my LASIK. It is nothing fancy like higher order aberrations. I just have a little bit of myopia. My vision during the day is fine but I can't see to drive at night. My -0.50 glasses clear every thing up. Doctors are often reluctant to prescribe glasses after surgery because it feels like failure. Since I am an optometrist I prescribed them for myself.
I have astigmatism, can I get lasik eye surgery?
Audrey d
How old do you have to be? What other alternatives are there, besides glasses, contacts, and lasik eye surgery? I'd like something permanant. How long does it take for it to heal? Are there serious risks during the procedure? If I can't get lasik eye surgery done, what's the problem? Sorry about all the questions, feel free to give me as much information as you can because I'm pretty sure I'm missing something that I'll want to know later . .
Answer
Sure.
Lasik works for most healthy people with healthy eyes who need total corrections less than about 3 or 4 diopters. It has to do with the shape of the eye and the thickness of the cornea.
You really should wait to have the proceedure until you have stopped growing and until your corrective prescriptive lenses have been the same for a year. When you are older, you will probably go 3 or 6 years without changing your prescription. You will not want to risk complications by having a lasik revision frequently while you are young.
The cornea is sliced with a micro thin blade (micro karatome) and flipped up. The lazer contours the freshly exposed inside tissue of the cornea and corrects the vision. The flap is then closed.
The corneal flap makes a bandage and the whole thing heals pretty quickly.
There are risks. Infection, halos in the night vision are the ones that come to mind.
You need to see two or three doctors, in my opinion. The consultations take about an hour. The consultations are free or about 50 dollars.
Lasik will not work if the astigmatism is very severe. My correction was more than 4.75 diopters and would have required PRK.
PRK requires the lazering off the front of the cornea and takes 2-3 weeks of rest and no work to heal.
My brother had PRK and needed 16 days. My sister had lasik and was back to work in three day. Both are happy and generally do not need any glasses.
See the doctors. Google LASIK and read about twenty sites.
God Bless you.
Sure.
Lasik works for most healthy people with healthy eyes who need total corrections less than about 3 or 4 diopters. It has to do with the shape of the eye and the thickness of the cornea.
You really should wait to have the proceedure until you have stopped growing and until your corrective prescriptive lenses have been the same for a year. When you are older, you will probably go 3 or 6 years without changing your prescription. You will not want to risk complications by having a lasik revision frequently while you are young.
The cornea is sliced with a micro thin blade (micro karatome) and flipped up. The lazer contours the freshly exposed inside tissue of the cornea and corrects the vision. The flap is then closed.
The corneal flap makes a bandage and the whole thing heals pretty quickly.
There are risks. Infection, halos in the night vision are the ones that come to mind.
You need to see two or three doctors, in my opinion. The consultations take about an hour. The consultations are free or about 50 dollars.
Lasik will not work if the astigmatism is very severe. My correction was more than 4.75 diopters and would have required PRK.
PRK requires the lazering off the front of the cornea and takes 2-3 weeks of rest and no work to heal.
My brother had PRK and needed 16 days. My sister had lasik and was back to work in three day. Both are happy and generally do not need any glasses.
See the doctors. Google LASIK and read about twenty sites.
God Bless you.
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Title Post: How are spherical abberations caused by lasik corrected?
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Rating: 98% based on 3217 ratings. 4,8 user reviews.
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Thanks For Coming To My Blog
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