What Causes Bloodshot Eyes?
9. Lifestyle
Lifestyle choices may also cause bloodshot eyes. For example, red bloodshot eyes can sometimes occur in those who wear contact lens. It may be due to wearing the contact lens for an excessive duration, defective lenses, allergic reaction to the contact lens solution, or a reaction to the presence of toxins created by bacteria.
Another example would be those who use eye whitening drops that are often used to reduce eye redness. Long-term use of these eyedrops can result in “rebound dilation,” causing the eyes to look even more bloodshot. Other lifestyle factors such as smoking, alcohol consumption, and inadequate sleep are all unhealthy lifestyle choices that can also cause bloodshot eyes. Those who swim may also have this issue as the chlorine used in the pools often causes some irritation resulting in red eyes.
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