Aug 26, 2010 · The laser that is used to treat your nearsightedness or farsightedness is the same laser that treats your astigmatism, whether you have PRK or LASIK. There are maximum amounts of nearsightedness, farsightedness, and astigmatism that the FDA has approved these laser for, but assuming you fall within the range, you should have no problem have ...

Feb 20, 2024 · PRK is easier to tolerate, less painful than LASIK, and delivers very similar results to LASIK, but PRK recovery time is a lot longer, so it’s not as popular. Experts say PRK is a good option for those who aren’t good candidates for a LASIK procedure, which requires a certain level of corneal thickness.

Jun 14, 2011 · Recovery after PRK occurs in stages:Stage 1 - seconds to minutes after the procedure, the vision is surprisingly clear, actually better than it is after LASIK at this point.Stage 2 - begins about 30-60 min after the procedure, as the numbing drops used during surgery wear off. The patient begins to experience mild to moderate discomfort in the eye.

Sep 8, 2010 · Think of PRK as 'Flap-less LASIK'. Both procedures are identical when it comes to correcting your eyeglass prescription, the only difference is that with LASIK a corneal flap is cut first (with a different machine) and in PRK the surface corneal epithelial cells (thin outer covering of the cornea) are removed first.

Jan 20, 2012 · Before my PRK surgery, I would occasionally notice floaters, but the difference now is that I notice them all the time. I read that PRK can not cause floaters since the surgery does not affect the vitreous humor, but that it is possible that PRK could cause one to notice their pre-existing floaters more. Why is this?

Nov 6, 2011 · PRK removes about 14 microns (amount of corneal tissue) per diopter (-1.00 prescription) of treatment for a standard 8.5 mm ablation zone with a normal blend. This would leave you with about 375 microns of residual bed (amount of corneal tissue/thickness).

Feb 1, 2012 · Your case falls in the grey zone for PRK procedure. Even though the residual cornea after your treatment would be above 250 Micron (the lowest number which is considered to be a safe and within the standard of care), some physicians consider any cornea less than 500 micron at a higher risk for destabilization following any type of corneal thining procedure and …

Sep 27, 2012 · PRK after RK is a complex issue. The most important point is to make certain that your cornea is stable before performing the PRK. It sounds as though your original RK may have left you hyperopic (far sighted), which is a common long term outcome after RK, and that you are now experiencing post-operative myopia (near sightedness) after the PRK.

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Feb 7, 2009 · PRK is an excellent method of correcting nearsightedness, but its biggest drawback is that it takes longer to heal. Unlike LASIK where most people have good vision the next day, with PRK there is usually substantial fluctuation of vision for the first several weeks and it can take as much as three or four months before the final result is known.