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Red eyes. Watery or white, stringy mucus discharge. Swollen eyelids. These ... Intense itching of the eyes is a symptom only associated with eye allergies. Feb 26, 2020 ... #1. Control Your Air Vents. Bloodshot eyes after flying are often caused by a lack of lubrication in the eye. Cabin air is extremely dry, and ... Additional causes of eye redness · use of alcohol or cannabis · photokeratitis, which is eye irritation that can happen due to sun exposure · ocular rosacea, a ... Sep 3, 2024 ... Due to repeated and forceful self-induced vomiting, a sudden increase in pressure from throwing up can increase the pressure inside the eye and ... 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. Red, bloodshot eyes can indicate several conditions. They may look alarming, but they're usually caused by a minor eye irritation or condition, like ... Mar 21, 2025 ... Causes of red eyes in dogs · Allergies · Environmental irritants · Conjunctivitis · Eye injuries · Uveitis · Corneal ulcers · Glaucoma · Dry eye. One of the most common is having red eyes (or a red eye), which, in the vast ... When this happens, it can cause a bright red blood spot within the eye. It basically means the blood vessels under the eye's surface become larger and inflamed, causing the eye to look red. Colds and other viral infections don't just cause sneezing and coughing but they may also affect your eyes. If your eyes are red, uncomfortable, and won't stop ...