A cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery. cataract is a clouding of the lens in the eye that affects vision. Most cataracts are related to aging. Cataracts are very common in older people. By age 80, more than half of all Americans either have a cataract or have had cataract surgery.
Commonly known as farting, passing wind, or having gas, flatulence is a medical term for releasing gas from the digestive system through the anus. It occurs when gas collects inside the digestive system, and is a normal process.
Flatulence is the medical term for passing gas from the digestive system and out of the anus (back passage). Flatulence is more commonly known as 'passing wind' or 'farting'.Gas can collect in the digestive system in two ways:1  when a person swallows food, water, or saliva they also swallow a small amount of air, which is mostly made up of oxygen and nitrogen, and.latulence is more commonly known as 'passing wind' or 'farting'. Gas can collect in the digestive system in two ways: 1  when a person swallows food, water, or saliva they also swallow a small amount of air, which is mostly made up of oxygen and nitrogen, and.