Overview. The major passages and structures of the upper respiratory tract include the nose or nostrils, nasal cavity, mouth, throat (pharynx), and voice box (larynx). The respiratory system is lined with a mucous membrane that secretes mucus. The mucus traps smaller particles like pollen or smoke.
About more than 50 percent of optometrists received an annual salary ranging from between $70,140 and $125,460. According to the Bureau of Labor Statistics, the median hourly wage for an optometrist is around $51.42 per hour which averages to about $106,960 per annum.
Those optometrists working in the middle of the pack make between $103 and $131K a year, making their hourly rates between $50 and $63 an hour. Many factors can add up to influence the salary of an optometrist. Hours worked, level of education, and geographical area all factor in to an annual salary.