You could try a healing spell. There are a lot of natural remedies that can help your eyesight, depending on the disorder.
I know this sounds stupid, but it helps if you exercise your eyes. If you can, open them up really wide and roll your eyes around as fast as you can switching direction often. Blink rapidly while doing this. It looks silly but increases blood flow and is known to improve your vision when done several times a day, every day. You might also find acupressure to be helpful. Hope your eyes get better :)