What can cause swelling of the optic disc?

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 2, 2022 ... Why Do I Have Bloodshot Eyes? · Dry eyes · Irritants such as smoke, pollen and perfume · Lack of sleep · Excessive alcohol consumption · Spending too ... What causes red eyes? · Allergies · Eye fatigue · Dry eyes · Pink eye or other eye infection · Glaucoma · Digital eyestrain · Trauma or eye injury · Corneal ulcer ... 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 ... Dec 30, 2021 ... Conjunctivitis is caused by an infection of the thin, transparent membrane that lines the eyelids and covers the white of the eye. Infected ... Aug 5, 2024 ... It may be related to an autoimmune disorder, infection, or exposure to toxins. The type of uveitis that causes the worst red eye is called ... Jan 7, 2022 ... What causes bloodshot eyes? · Allergies: Allergies can lead to eye symptoms, such as redness, itching, and watery eyes. · Pink eye: Pink eye ... Apr 7, 2023 ... What Causes Red Eyes? Bloodshot or red eyes eyes are usually caused by an external irritant, called an allergen. Irritated eyes can look ... Jan 22, 2025 ... It's common for a red eye to look worse than it feels. Many eye conditions can cause red eyes, such as injury, allergy, or dryness. Bloodshot Eyes: Causes, Symptoms & Treatment ... Bloodshot eyes describe a condition when the blood vessels in the white part of the eye (sclera) are swollen. The ...