I wanted to share an experience from about 10 years ago. I visited an ophthalmologist which I had seen referenced as friendly on a Bates website. Indeed he gave me a reduced correction for closeup. He also mentioned that lasik wasn’t a good idea because it complicates treating cataracts later in life.
But this doctor did a sort of test which kind of scared me but which I found very interesting as well. On that day, he measured that my correction to see 20/20 was -6.25 and -6.75. But after this, he tried to see how strong of a correction with which I would still be able to read 20/20, with my lens working to accommodate. It got as far as -20! The purpose wasn’t to prescribe me this over correction, as I left his office with the -6.25/-6.75 correction and another reduced one for closeup. Maybe he was trying to see how well my lens could accommodate?
But I found it interesting because it made me think of optometrist visits as a child, in which I remember the doctor continually putting stronger corrections and asking if it were “better”. I think I kept saying yes each time until I detected a worried or disapproving reaction from the doctor. I probably could have had a weaker correction as a child if the doctor just stopped as soon as I could read the 20/20 line.