My optometrist (the guy selling glasses) measured my eye sight and found that I needed a correction for some corneal irregularity (pardon me if I did not translate the terms right). I had never been given such a reading from my ophthalmologist (eye doctor) who just wrote down dioptry corrections. My optometrist then told me that the specific doctor never wrote down these numbers (i.e. ignoring a condition). This tought me a lot about medical professionals and highly educated doctors. My doctor probably is just a little bored to measure and monitor visual acuity changes in a person with small eyesight issues. That ophthalmologist also had very good reputation working with accident victims, etc.