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.
1 The vastus medialis is a muscle present in the anterior compartment of thigh, and is one of the four muscles that make up the quadriceps muscle. 2  It is the most medial of the vastus group of muscles, the others being vastus intermedius and vastus lateralis. It is the most medial of the vastus group of muscles, the others being vastus intermedius and vastus lateralis. 2  The vastus medialis arises medially along the entire length of the femur, and attaches with the other muscles of the quadriceps in the quadriceps tendon.