PRK with collagen crosslinking 6 weeks ago, the ghosting is really scaring me.

Enjoy your cup of coffee, more likely to get dehydrated at the gym.  I am not sure why you were told to avoid caffeine, but at this point in your recovery, I think you deserve a Starbuck's!

First of all, skiing without sunglasses can cause irreparable harm to the retina (the back of the eye). It can also cause regression of the PRK result. Further PRK can improve your vision, but if you expose yourself to the high levels of ultraviolet light present at high altitudes while skiing ...

I recommend a visit to the doctor to check your visual acuity. If it is just a minor prescription left over, a touch up may not be worthwhile due to recovery time and risk of haze. However, if the vision is poor, your doctor would analyze your corneal maps and remaining thickness to make sure...