Occasionally a person experiences visual changes that are difficult to completely understand with only a clinical eye exam. These changes may be due to abnormalities in the function of some of the cells on the back of the eye in the retina, or there may be changes in the nerve connections between the eye and the brain.
Worldwide, viral hepatitis is the most common cause of liver inflammation. Other causes include autoimmune diseases and ingestion of toxic substances (notably alcohol), certain medications (such as paracetamol), some industrial organic solvents, and plants. large number of medications and other chemical agents can cause hepatitis. In the United States acetaminophen, antibiotics, and central nervous system medications are among the most common causes of drug-induced hepatitis.
1 Viruses that primarily attack the liver are called hepatitis viruses. 2  There are several types of hepatitis viruses including types A, B, C, D, E, and possibly G. Types A, B, and C are the most common. 3  All hepatitis viruses can cause acute hepatitis. 4  Viral hepatitis types B and C can cause chronic hepatitis.