Emergency medicine is a subspecialty that focuses on patients who need immediate and often intensive care. These physicians must be able to handle medical problems quickly to avoid potential complications with their patients. With their knowledge of emergency medicine comes knowledge about many other types of medicine, as they must be able to respond to patients who present a variety of symptoms and problems. They will also have a thorough understanding of emergency medical devices.

An ophthalmologist is a healthcare professional who has been trained to treat eye diseases and other conditions that affect the eyes. They diagnose and treat these issues and can even conduct surgery to help repair certain condition. They also conduct eye exams and help patients find the right glasses or other ways to improve their vision.

A urologist is a health professional who studies and treats disorders of the urinary tract. Urologists can conduct tests, perform surgery, and help resolve any issues that a patient may be having with urination. Urologists treat the kidneys, ureters, bladder, urethra, and adrenal glands. They can also treat some male reproductive organs that are connected to the urinary tract.