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.
The income of an eye doctor depends on the type of doctor one is, among other factors, like work experience and employer. According to the U.S. Bureau of Labor Statistics (BLS), the median salary of an optometrist in May 2014 was $113,010, with most making between $52,270 and $132,580 per year. Offices of other health practitioners employed the most optometrists, and these employers paid optometrists an average wage of $109,430.