my eyes have improved (!)

i have been wearing glasses since junior high. the contacts i have been wearing have been the same for at least 4 years and before that since i got them in college. i have never had a prescription this weak. i went from -4.25 in my left eye to 3. and 3.25 in my right eye to 3.75. that is insane.
someone mentioned my diet. yes, possibly that improved my eyes! highly recommended.