16F -Facultative hyperopia

From the age of six, I had 9 diopters of farsightedness, which gradually decreased. I never had strabismus. Over time, it dropped to 7 diopters. I always wore 7 diopters, but sometimes I went to school without glasses and could see. When they broke, I realized I could see or read a page without them. So I went to the ophthalmologist, and he saw that I could see up to the seventh row without glasses and that I still had 2 or 3 diopters of farsightedness. From there, he prescribed eye drops, and it went down to 5 diopters and a little more. He said it could continue to decrease; he only put one drop in each eye. Yesterday I went to a meeting without glasses and didn't feel like I needed them. Also, I have the ability to relax my eye muscles, see blurry, and focus. I can read a book of 100 pages or more with 3 diopter glasses and I don't get unbearable headaches, and I can go without glasses for hours without feeling like I need them. The situation scares me a little. I also go to the gym without glasses, etc.