There are 3 major parts of the respiratory system: the airway, the lungs, and the muscles of respiration. The airway, which includes the nose, mouth, pharynx, larynx, trachea, bronchi, and bronchioles, carries air between the lungs and the bodyâs exterior.
The starting salary for optometrists with less than a year of experience typically ranges from $57,810 to $102,129 a year according to Payscale. These professionals earn bonuses in the average amount of $500 per year. The hourly rate for professionals with less than a year of experience is between $39.09 and $54.38.
The average salary for self-employed optometrists is about $175,329. Another factor in salary is group size: optometrists who are part of a mid-size group (3-5 practitioners) earn the highest salary on average, about $179,000.