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).
Optometrist: A practitioner who provides primary eye and vision care, performs eye examinations to detect vision problems, and prescribes corrective lenses to correct those problems. Some optometrists also make and fit eyeglasses, but many leave that job to opticians. An optometrist is a doctor of optometry (OD), not an MD. When an optometrist detects eye disease, the patient may be referred instead to an ophthalmologist, a physician who specializes in evaluating and treating diseases of the eye.