I have not had it. My vision has always been great except for when I was 26 and got the measles. Then I lost most of my vision for about 6 months. I collected some fresh juniper berries from the local mountains and these brought my vision back to 100% in a week.
I have not heard a lot of good about Lasik. People have ended up with permanent eye injuries and blindness and I heard the average failure time is around 2 years. If this is the case then your friend was pretty lucky to have gone 8 years. I personally would not have it done.
I would agree with your ophthalmologist. What people need to keep in mind is that they structure of the eye generally changes with age. Surgery is not going to stop those changes. It is like getting a face lift. You might tighten up the tissues temporarily, but the skin is still going to continue stretching and sagging. The only thing that is going to slow this process is proper nutrition and sufficient stomach acid to ensure the absorption of those nutrients. And many of the same nutrients needed for healthy skin are also needed for healthy structural strength of the eye. In particular silica and vitamin C.
whats your opinion on eye exercises? i have read they may be of some benefit in improving the lens
They can help. Vision is partially controlled by the contraction and relaxation of muscles around the eye that aids in focusing. So exercising the muscles can help with some vision problems.