Improper hygiene or extended wear of contact lenses can lead to bacterial, fungal, or viral infections in the eyes which can cause redness and in severe cases, even vision loss.
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Corneal Abrasions
If lenses are not properly fitted or get trapped between the lens and the eye, it can cause scratches or abrasions on the cornea. T
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Corneal Ulcers
Prolonged use of contact lenses, especially overnight wear, can reduce the amount of oxygen reaching the cornea.
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Allergic Reactions
Some people may develop allergies to the materials used in contact lenses or the solutions used to clean them.
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Dry Eyes
Contact lenses can exacerbate symptoms of dry eye syndrome, especially if they are worn for long periods or in environments with low humidity.
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Conjunctivitis (Pink Eye)
Improper handling of contact lenses, such as not washing hands before insertion or removal, can introduce bacteria or other pathogens to the eyes, leading to conjunctivitis.