Optometrists (also known as Doctors of Optometry in the US and Canada for those holding the O.D. degree[1] or Ophthalmic Opticians in the UK[2][3][4][5][6][7]) are medical professionals who provide primary eyecare through comprehensive eye examinations to detect and treat various visual abnormalities and eye diseases.
The first step toward becoming a surgeon is to earn a bachelor's degree. Although there is no specific mandated major, it's highly suggested you consider a major in the sciences, such as biology or chemistry. You must pass the Medical College Admission Test (MCAT) to apply to medical school.
Then you have to complete your internship and residency in Surgery for about 6 years and then another 2 to 3 years Fellowship in CardioThoracic speciality to become a Cardiac Surgeon.