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.
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.