Optometrist 

Duties and responsibilities: the responsibilities is a Perform vision tests and analyze results. Diagnose sight problems, such as nearsightedness or farsightedness and eye diseases, such as glaucoma. ... Provide treatments such as vision therapy or low-vision rehabilitation. 

Salary: the salary is  The median annual Optometrist salary is $116,562, as of March 31, 2017, with a range usually between $103,207-$129,159, however this can vary widely depending on a variety of factors. 

Education: You'll need a bachelor's degree to apply for optometry programs, which are rather competitive. Optometry programs typically take an additional four years to complete; upon completion you must meet national and your state's licensing requirements in order to become a practicing optometrist. 

Demand  or need for this profession: The Doctor of Optometry degree requires the completion of a 4-year program at an accredited optometry school, preceded by at least 3 years of pre optometric study at an accredited college or university. All States require optometrists to be licensed.