How often should you see a eye doctor, if you feel your visions fine and you have no other conditions that would change it it's been 8 years..

Every 3-5 years: For healthy people and normally seeing eyes, i advise an eye exam every 3 to 5 years till age 40. Thereafter, every 1-2 years till 60. Then annually thereafter. Of course, if there is any condition or disease that develops, exam frequency is modified.

Every 2 yrs: Every few years is a good idea for eye exam when you are an adult.