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Is the effect of lack of sleep on the eyes direct or indirect?
Bloodshot eyes occur when the tiny blood vessels on the surface of the eye become inflamed in response to insufficient amounts of oxygen in the cornea or tissues covering the eyes. Eyes can also appear swollen, watery and tired-looking. Bloodshot eyes can occur in adults and children and are often attributed to poor sleep, allergies or an underlying problem.
What are the main causes?-Pollution - exhaust fumes, smoke, dust and chemicals can all irritate the eyes making them red and bloodshot -Swimming - The chlorine used in swimming pools can be particularly irritating to your eyes -Staring at a computer screen for long periods can cause eye strain which in turn can lead to a bloodshot appearance. -Staring at a computer screen for long periods can cause eye strain which in turn can lead to a bloodshot appearance-Lack of sleep - When we are tired our eyes can look bloodshot, particularly problematic the morning after a late night!