I had prk eye surgery 6 month ago and i am having halos.I cant see clearly at night time beacuse of halos.When i watch TV or computer the lights are coming out from that screen.Is that normal?or something wrong?what is total recovery time or healing time for PRk eye surgery?I was nearsighted and had -10D both eyes prior to surgery.And also i had astigmatism.can u plese answer..Thank you
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PRK eye surgery and halos
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2 UpVoted this answer
Do the following simple test. At night sit in a car parked viewing traffic in a halo situation. Now turn on the interior lighting for your vehicle - not just a map light, but the lighting that lights the whole interior. Now check to see if the halos are reduced.
You probably have what is called spherical aberration. If so, you can consider two options:
1) a doctor ca prescribe a glaucoma drug called alphagan- put two drops of artificial preservative tears in each eye and one drop of alphagan, followed by two MORE drops of artificial tears in each eye. You should get greatly improved vision for about 4 to 6 hours, and can repeat one time per night. If you dont use the artificial tears before and after within a month the effect will stop and you will be resistant to it.
2) have your prescription rechecked and be sure you do not have residual nearsightendess that could be corrected with a weak glasses prescription.
3) have a wavescan of your eyes and have the abnormalities discussed in 1 measured. your doctor should repeat this scan with neosynephrine 2.5% first administred 15 minutes before the scan. The amount of spherical aberration will appear in the scan. If high, it is potentially treatable with a Visx Customvue laser (the only one that does this).
4 a new technology called topolasik is becomeing available - it is FDA approved but not yet being used in the US. It may actually perform a treatment better than the custom vue. Too early to know for sure.
5 you may not have enough cornel thickness left for this any treatment. if so I believe though it will take a few years an eyedrop that temprorarily completely eliminates the problems corrected in 1 above (called spherical aberration) will be available. too premature to know. we are proposing this drug to the fda and it will undergo Phase 2 study over the nxt 1.5 years. It is actually intended for another purpose but it likely would really help this kind of problem. It would take another 3 years or so to become officially available.
6 dont give up hope and remember, this is an online response; it is only general information. be sure to consider what an experiened dr tells you above and beyond any internet review.
Hope this helps.
You probably have what is called spherical aberration. If so, you can consider two options:
1) a doctor ca prescribe a glaucoma drug called alphagan- put two drops of artificial preservative tears in each eye and one drop of alphagan, followed by two MORE drops of artificial tears in each eye. You should get greatly improved vision for about 4 to 6 hours, and can repeat one time per night. If you dont use the artificial tears before and after within a month the effect will stop and you will be resistant to it.
2) have your prescription rechecked and be sure you do not have residual nearsightendess that could be corrected with a weak glasses prescription.
3) have a wavescan of your eyes and have the abnormalities discussed in 1 measured. your doctor should repeat this scan with neosynephrine 2.5% first administred 15 minutes before the scan. The amount of spherical aberration will appear in the scan. If high, it is potentially treatable with a Visx Customvue laser (the only one that does this).
4 a new technology called topolasik is becomeing available - it is FDA approved but not yet being used in the US. It may actually perform a treatment better than the custom vue. Too early to know for sure.
5 you may not have enough cornel thickness left for this any treatment. if so I believe though it will take a few years an eyedrop that temprorarily completely eliminates the problems corrected in 1 above (called spherical aberration) will be available. too premature to know. we are proposing this drug to the fda and it will undergo Phase 2 study over the nxt 1.5 years. It is actually intended for another purpose but it likely would really help this kind of problem. It would take another 3 years or so to become officially available.
6 dont give up hope and remember, this is an online response; it is only general information. be sure to consider what an experiened dr tells you above and beyond any internet review.
Hope this helps.
2 UpVoted this answer
You haven't indicated whether the halos have been present ever since the surgery was done or if this is a a more recent symptom. In general corneas having undergone the PRK procedure heal and have stable vision within 6 months. You should have a followup exam with the laser surgery center. If you have large pupils and the zone treated with the PRK surgery was not large enough this could produce halos at night. It is possible you may need an enhancement--a second PRK procedure to increase the treatment zone.
Read Dr. Horn's answer, and please call your surgeon! No doubt he/she would like to know about these difficulties so you can have the appropriate testing and treatments as they are available.
Some patients DO have glare, haloes and star-bursting at night longer than others. If there is a bit of prescription remaining, glasses at night may help. A yellow or amber tint may also help. If there is any corneal haze (your doctor can advise on this) occasionally some touch-up lasering may help (once Rx is stable). You had a lot of lasering if your Rx was -10.00 D. It may take a bit longer than others to resolve.
Halos after Laser refractive surgery (including PRK)are a common complaint, especially after correcting high degrees of near sightedness, and usually at night , because the pupil gets larger than the treated central area, this is usually explained to you in detail before you go through surgery.
Unfortunately you might not have been the best candidate for PRK. Your -10 prescription is approaching the limits of refractive surgery. Hopefully you had one of the more modern aspheric corrections that takes some of the aberrations out of the eye. At 6 months you should be fully healed. I would recommend you go back to your surgeon or to another well known laser center for a recheck or second opinion. Possibly a retreatment to eliminate any remaining prescription would be possible if there is enough corneal thickness remaining to safely retreat you.
Well you were extreamly nearsighted and it sounds like you see well except for halo's?
20 year old female is all I know about you so it's hard to tell you what is causing your complaint.
Your large correction flattened your cornea and a very flat cornea sees halos. A dry eye or a post PRK eyexwith haE sees glare and halos.
Young people havecaxtivecandvoften large pupils.
Maybe you treatment size was limited to preserve your cornea or was decentered?
So don't despair. Lots of artificial tears, avoid UV light. See if you a small prescription helps.
Good luck!
20 year old female is all I know about you so it's hard to tell you what is causing your complaint.
Your large correction flattened your cornea and a very flat cornea sees halos. A dry eye or a post PRK eyexwith haE sees glare and halos.
Young people havecaxtivecandvoften large pupils.
Maybe you treatment size was limited to preserve your cornea or was decentered?
So don't despair. Lots of artificial tears, avoid UV light. See if you a small prescription helps.
Good luck!