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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. Apr 11, 2023 ... The most common symptoms of conjunctivitis include a red eye and discharge. There are many potential causes of conjunctivitis, including ... Sep 1, 2019 ... Red eyes can result from causes other than those listed above, including infection, eye injury, smoking or exposure to smoke, having a cold or the flu, ... 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, ... 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 ... Sep 2, 2024 ... After about an hour of playing my eyes hurt and are completely bloodshot. I don't think it's due to stress. I think it has to do with the way the graphics are ... Jul 12, 2018 ... This increases the blood flow to these areas and causes an overall decrease in blood pressure. The increased blood flow to your eyeball causes ... Red eye. A red eye is usually nothing to worry about and often gets better on its own. But sometimes it can be serious and you'll need to get medical help. Dec 29, 2022 ... One of the common causes of sudden bloodshot eyes is a subconjunctival hemorrhage. It sounds serious, but it is usually harmless and resolves in ... Causes of a red eye · a burst blood vessel (subconjunctival haemorrhage) - a bright red area in the white of your eye · conjunctivitis - gritty or burning ...