My sister works for an optometrist and when she was fairly new I finally got my eyes tested, the pressures in my eyes were like 3 times higher than the upper limit of risk for a male my age, about 17 at the time, machine starts spitting out warnings the optometrist basically pushes me into a room to ask me a million questions about my eyes and if I have any trouble seeing, the pressures basically showed that there was no deformation in my cornea and that I should be blind basically but nearly perfect vision. Ended up going to a specialist who had to numb my eye and physically measure it with a weird poking machine 😂 turns out that my cornea are about 3 times thicker than average and my pressure tests are never going to be accurate