Broken blood vessel
A broken blood vessel occurs when the white part of your eye becomes bright red from the blood leaking under the clear conjunctiva (white part of your eye). This may cause swelling or puffy eyes. While the redness may look threatening, it is usually harmless and typically isn't considered an emergency.
Treatment for a broken blood vessel in your eye is limited as it takes time for the blood to absorb, typically within a week or two. If you experience irritation, over-the-counter eye drops may ease discomfort as your eye heals.
Eye allergies
Allergies are typically seasonal but can occur year-round when an irritant affects your eyes. Common irritants like pet dander, dust mites, plants, molds, or fumes can cause puffiness, red itchy eyes, or unusually watery eyes.
Treatment for eye allergies includes over-the-counter antihistamines, artificial tears, washing hands after petting animals, and keeping windows closed to prevent allergens from blowing inside.
If your allergies continue to cause puffy eyes, irritation, or discomfort, see your eye doctor or general doctor to discuss prescription medication or eyedrops that may be helpful.
Computer eye strain
Studies have shown that people who use a computer or other digital screen for prolonged amounts of time tend to blink less. This can lead to computer eye strain, a condition that can cause fatigue, eye swelling, blurry vision, headaches, and dry eyes.
While it may be difficult to avoid screen time if you work on a computer, taking regular breaks and limiting screen time after work can help rest your eyes. When you are using a screen, make sure you have adequate lighting, anti-glare screen or glasses, a comfortable working position, and a proper distance from the screen (20 to 28 inches from your eyes).
Applying eye drops and wearing computer glasses prescribed by your eye doctor can also help alleviate symptoms of digital eye strain.
