Yoga for better vision

I hear yoga has a sure-shot cure for everything. I currently have a myopia of -4.5D. How can Yoga help me get rid of my eye glasses?

Yoga can support work on reducing the strength of your glasses - usually it is not focused on this.
Check those websites:
http://www.self-healing.org/
http://www.vision-training.com/
Good luck

I have also heard that the Bates method can improve vision. See

http://www.iblindness.org/intro/principles.html