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.
It is the American Optometric Association which closely monitors the facts regarding salary for optometrists. In the recent data from AOA, the annual income of an optometrist can range within $120,000 up to $175,000. The median for the income in bigger cities is within $150,000. On the other hand, $100,000 up to $130,000 is a decent income for those who are not practicing within major cities.