Cataract Surgery Basics. In cataract surgery, the lens inside your eye that has become cloudy is removed and replaced with an artificial lens (called an intraocular lens, or IOL) to restore clear vision.The procedure typically is performed on an outpatient basis and does not require an overnight stay in a hospital or other care facility.hankfully, modern cataract surgery is one of the safest and most effective surgical procedures performed today. More than 3 million cataract surgeries are performed in the United States every year, with the vast majority of these procedures produce excellent visual outcomes.
Flatus: Gas in the intestinal tract or gas passed through the anus. Intestinal gas contains numerous gases including oxygen, nitrogen, hydrogen, carbon dioxide, hydrogen sulfide, ammonia, and methane. The foul smell usually is caused by small traces of gases such as hydrogen sulfide, ammonia, and methane.ntestinal gas contains numerous gases including oxygen, nitrogen, hydrogen, carbon dioxide, hydrogen sulfide, ammonia, and methane. The foul smell usually is caused by small traces of gases such as hydrogen sulfide, ammonia, and methane.
Vastus lateralis. The vastus lateralis muscle is located on the side of the thigh. This muscle is the largest of the quadriceps group (often called quads) which also includes the rectus femoris, the vastus intermedius, and the vastus medialis.Collectively, the quadriceps muscle is the largest in the human body and its purpose is to extend the knee.The specific task of the vastus lateralis muscle is to extend the lower leg and allow the body to rise up from a squatting position.On the upper end, the muscle attaches to the femur; on the lower end it attaches to the patella, or kneecap.ollectively, the quadriceps muscle is the largest in the human body and its purpose is to extend the knee. The specific task of the vastus lateralis muscle is to extend the lower leg and allow the body to rise up from a squatting position.