Do some artificial tears have preservatives?

Seasonal or environmental allergies, such as those to pollen, pet dander, and cigarette smoke, can cause red and swollen eyes. You may also experience itching, ... Viruses can cause conjunctivitis, such as the familiar red eyes, sore throat, and runny nose of a common cold. Viral conjunctivitis usually produces a ... Jun 26, 2015 ... it's not the chemical itself turning your eyes red after a swim — it's everything else in the water that chlorine goes in to kill ... Specifically ... Exposure to pollen, grass and other airborne allergens causes seasonal allergic conjunctivitis. ... Red eyes. Watery or white, stringy mucus discharge. Swollen ... Allergies, eye fatigue, over-wearing contact lenses, and conjunctivitis (also known as 'pink eye') are all typical causes for red eyes. In more serious cases, ... 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, ... Causes · Allergies — Injury, such as from a blunt trauma or burn. · Blepharitis — which is eyelid inflammation. · Chalazion — caused by clogged oil glands on the ... Feb 27, 2023 ... Conjunctivitis usually causes symptoms in both eyes like: ... very red eyes (1 eye or both eyes); a baby less than 28 days old with ... What are common causes of red eyes? · Allergies · Eye or eyelid inflammation · Pink eye (conjunctivitis) · Dry eyes · Glaucoma · Eye injuries · Smoking · Excessive ... Apr 10, 2017 ... Red eye is caused by light reflecting off the retina at the back of your eyes. Generally, it happens in low light conditions when a flash is ...