Ordinary GPs aren't experts and the equipment for doing vision checks is expensive and consumes space.

IMO, medical care should be completely re-organized. Get rid of GPs as a profession (outside of cruise ships and the military) and GP practices entirely. Instead, have community clinics for everyday medical needs spread out over the country that have a team of skilled nurses for triage with a number of subject-expert doctors at the second level, and large/university clinics for everything the community clinics can't deal with (urgent/trauma care, oncology).

That would also shorten training times and effort for new doctors by a significant degree - e.g. in Germany, an ophtalmologist requires a full medical degree (over six years, not counting waiting times because medical study places are short in supply) followed by five years of specialized training. Realistically, training any expert doctor now takes at least twelve to fifteen years... and that's frankly absurd, and part of why medical costs are so sky-rocketing. Not many students make the ridiculously high entry requirements, many don't survive that time (and sometimes literally - suicide rates among medical students are way above average!), and those who have their MD are left with fifteen years worth of student debt which means they have to charge extraordinary hourly rates simply to be able to pay back the loans.