The right lung has 3 lobes: Right upper lobe, middle and lower lobe. The left lung has 2 lobes: Left upper lobe (the lingula anatomically corresponds to the middle lobe on the right) and lower lobe.
How much money do optometrists make? According to recently released statistics the average salary payable to an optometrist is $118,000, while this is given as a nationwide average there are at least 50% of optometrists who are not achieving this salary level.
Optometrist techs earned average annual salaries of $29,920, according to the BLS. The middle half made between $22,400 and $36,110 per year. Those in the bottom 10 percent earned less than $18,620 annually.