Pink eye may also cause the conjunctiva to swell, indicating inflammation. In many cases, the swelling is more felt than visible and may cause sensations similar to sand or dirt in the eye. Blinking can be irritating and tiring. Inflammation does not occur in every case of pink eye. If eye pain, difficulty seeing, or sensitivity to light develops, it is important to get an immediate medical evaluation. These can be signs of more serious eye conditions.
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