The Vision Training approach for astigmatism involve the release of tension held in any of the muscles around the eye. In most cases you will notice an improvement after doing the exercise just a few times. I have often seen astigmatism go after doing the exercise one or two times. In most cases you will need to do the exercise for a few days. In rare cases exercises may be needed for longer periods.
The are people who have gotten rid of very hight degree of astigmatim from 4.5 diopters after 6 weeks of doing the exercise.
People who have corrected their astigmatism with Vision Training often say that they wished that they knew about this when their astigmatism was first discovered.
