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.
A 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. 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.
Several different viruses, named the hepatitis A, B, C, D, and E viruses, cause viral hepatitis. All of these viruses cause acute, or short-term, viral hepatitis. The hepatitis B, C, and D viruses can also cause chronic hepatitis, in which the infection is prolonged, sometimes lifelong. Chronic hepatitis can lead to cirrhosis, liver failure, and liver cancer.