Can you use preservative free sterile water vials to clean eyes after PRK eye surgery?

PRK averages 6 months of fluctuating vision before settling in.  Let the eyes continue to heal and continue your follow-ups.  Healing with PRK is something that takes time and patience.  

At this point, you should revisit your doctor to narrow down the cause of the blurry and fluctuating vision. 

I'm sorry to hear that you are having irritation in your eyes after laser vision correction.  Because of newer technology, this complication is happening much less frequently and can sometimes be predicted beforehand.  Schedule a consultation with a board certified ophthalmologist who treats d...

As you were told, night vision symptoms typically improve with time. However, if it has not improved after several months, you should get reevaluated by your surgeon. Frequently, treatable conditions such as residual refractive error, ocular surface problems, or other conditions may cause...

Glasses won't help it is optically impossible as they are not locked onto your eye and don't adjust to pupil sizeyou need a HD LASEK with a WIDE ZONE and MMC to prevent scarring of your prior LASIK flap if you had thator this can be done as primary treatment

You should have gotten LASEK its recovery is much faster than PRKYour case sounds to me to be more than slow recovery after PRK  See a cornea/Refractive-trained specialist for a second opinion