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.
Physicians' offices offered optometrists an average wage of $139,050, which was the highest wage by industry. PayScale.com reported in January 2016 that entry-level optometrists earned a median wage of $97,667, while those at the mid-career level made a median wage of $102,362.