The world's first skyscraper was built in Chicago in 1885. Since that time, the United States has been home and still is home to some of the world's tallest skyscrapers. New York City, specifically the borough of Manhattan, notably having the tallest skyline in the country. Eleven American buildings have held the title of tallest building in the world (9 in New York City). New York City and Chicago have always been the centers of American skyscraper building.
An optometrist has a doctor of optometry degree and is able to provide full eye care. An optician is not a doctor, but a medical technician specializing in creating eyeglasses and contact lenses. To diagnose and treat eye infections, you would see an ophthalmologist or an optometrist. In addition, an internist or family physician can prescribe antibiotics to treat infections such as conjunctivitis (pinkeye).
retinascope and trial frame image by hazel proudlove from Fotolia.com. An optometrist---not to be confused with an ophthalmologist---is a general eye care practitioner, somewhat like a dentist for the eyes. Optometrists can give eye exams, prescribe medications and perform other duties relating to routine eye care. An optometrist is different from an ophthalmologist in that only ophthalmologists are required to have a broad knowledge of general medicine and only they can perform major eye surgery.