Where in the article does it mention or speculate about BDNF having an effect on nearsightedness? And what would be a theoretical basis for that, given that it

Where in the article does it mention or speculate about BDNF having an effect on nearsightedness? And what would be a theoretical basis for that, given that it relates to the shape of the eye and not the health of sensory neurons? Exercise doesn't work, broadly speaking, or millions who are nearsighted and who exercise a lot would notice their vision improve. Assuming you're not simply trolling, did you start eating or drinking something new shortly before your eyesight improved? Did something change in your environment? Although I think it's more likely that a dramatic improvement in eyesight is the result of a rare chemical signalling fluke (possibly genetic), if you changed habits beforehand that's worth investigating as a possible cause. Exercise [alone], however, even Qi Gong/Tai Chi, is not worth investigating. Plenty of people practice those arts and other Oriental physiological philosophies, not to mention other things like yoga and meditation, and don't see improvement in their eyesight.