To become an eye doctor, one has to undergo four years of a bachelors degree program from a recognized institution of higher learning. The undergraduate course should be in a related field such as biology. After graduation, you will then need to get into an optometry degree program which will culminate in you acquiring a Doctor of Optometry degree program. Not many colleges offer an optometry program, so it is very competitive to get in. In the United States, only 23 schools are certified to provide optometry courses. Therefore, you require eight years of education to become an eye doctor.