Both can check out your eye health. Opto's may be trained in behavioral optometry. Ophthalmologists are MD's. They don't usually get into the behavioral opto issues. Neuro-ophthalmologists are more specialized. If your concern is your misreading of words, a behavioral optometrist may be a good start. I think you are being too hard are yourself. Unless you are constantly misreading words, I suggest you go slow with seeking treatment.