I try to look at something far away for at least 20 minutes a day. I wasn't sort-sighted as a child, but like everyone my eyesight has gotten worse in adulthood

I try to look at something far away for at least 20 minutes a day. I wasn't sort-sighted as a child, but like everyone my eyesight has gotten worse in adulthood. I noticed my eyesight really took a turn during lockdown, but I was able to slow the decline/some reversal once I was going back outside regularly. I have given this advice to a few friends, and some anecdotal reports back say its also helped them.