What are the common causes of bloodshot eyes?

Jun 21, 2023 ... Excessive alcohol consumption can cause a subconjunctival hemorrhage. This is when the tiny blood vessels in the eye burst and bleed into the ... Sep 11, 2024 ... The most common causes of red and bloodshot eyes are painless, but serious conditions (like a corneal ulcer) can be quite painful. Red eyes are usually caused by easily treated issues like allergies or pink eye. But if you're in pain or your vision's changing, it could be more serious. Jun 5, 2023 ... External irritants or foreign material in or around the eyes can cause redness. Common examples include grass, hair, toxic gases/fumes, fights ... Jan 7, 2025 ... Dust, air pollution, chemicals, and wind are common causes. Some people develop eye redness due to smoke in the environment. It is not uncommon ... May 25, 2022 ... Bloodshot eyes can indicate the presence of several different health issues. While some of these issues are benign, others can be serious and require emergency ... Dec 22, 2023 ... Also referred to as pink eye, conjunctivitis is the most common cause of red eye in cats. Typically the result of bacterial infection, ... The most likely causes of a painless red eye are minor problems such as conjunctivitis or a burst blood vessel. These conditions don't tend to affect your ... Apr 2, 2025 ... Pink Eye in Dogs (Conjunctivitis): Pink eye, or conjunctivitis, is a common cause of red eyes in dogs. It's characterized by inflammation of the ... Jul 9, 2019 ... Red veins in babies' eyes: what causes it? Your newborn baby might have red veins in their eyes from a subconjunctival hemorrhage (see above).