I am in mid 70's, but do a lot of reading in Kindle and working on computers on projects of various sorts. I've been nearsighted all my life and wear both varifocal and fixed focal glasses, some polarized, with recent exams and prescriptions (6 months). For some time, focus has not been as sharp or consistent as desired or in the past. I have been taking Advanced Vision formula about 1 month, and am "seeing" improvements in consistency of focus for detailed work at various distances- sometimes markedly surprising, because one can get used to a certain amount of blur as just part for the course. It's like turning time back a few years...
Star rating is positive but I don't expect full results in just 30 days...