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.
Average Salary National salary information collected by Pay Scale states optometrists earn between $74,000 and $100,000 on average. Bonuses add between $1,000 to nearly $10,000 to that number, and profit-sharing can add as much as $10,000.