Furthermore, from the article, it may be misinterpreted that I starting using tDCS to treat my vision, but this is not true. I have always been interested in self-improvement, and wanted to try new things to become a better person and live my life in the right way. A few months before stumbling upon tDCS, I had started to spend more time in meditation and exercising regularly, as well as taking nutritional supplements and becoming vegetarian. So tDCS seemed like one more thing to try to see if it made a difference for me, and I did not expect that it would affect my vision at all. However, after using it one evening, I noticed that I was able to see better in low light. It was a strange feeling at first, but after trying it for several nights in a row, it was very evident that I could perceive things that I simply couldn’t see before, such as the upper floors of tall buildings, and traffic from more than a few meters away. While my visual acuity remains the same, my contrast perception and ability to notice small objects have noticeably improved.

via Inside the Mind of a ‘Brain Hacker’ — tDCS and Neurodynamics — Medium.