I used the transderm-scop patch for a week about a year ago while on a small fishing boat. My vision became quite blurred by the end of the trip... so bad I couldn't read the numbers on my cellphone, etc. Once I took off the patch, my vision improved substantially... but never seemed to return to normal. I now need reading glasses at times. Is it coincidence that my eyes changed at the same time? I was 45 years old at the time.