- Pink eye (conjunctivitis)
Pinkeye is redness and swelling of the membrane that lines the eyelid, called the conjunctiva.
- Corneal abrasion (scratch)
A corneal abrasion is a scratch on the clear part of the eye and causes watery bloodshot eyes, pain, and more.
- Contact lens use
Wearing contact lenses instead of glasses can sometimes cause eye discomfort, irritation, or infection.
- Eye injury
There are many types of eye injury, and symptoms include eye pain, burning, irritation, bleeding, and more.
- Stuck eyelash
Getting an eyelash stuck in the eye may cause itchiness, stinging, redness, or blurry vision in one eye.
- Hay fever
Hay fever, an allergic reaction to outdoor pollens and molds, causes nasal congestion, itchy eyes, and more.
- Lyme disease
Lyme disease is a bacterial infection spread through tick bites; symptoms include rash, fever chills, and more.
- Dry eyes
Symptoms of dry eyes include a gritty sensation, pain, light sensitivity, eye redness, burning, and stinging.
- Foreign object in the eye
Symptoms of a foreign object in the eye include pain, stinging, itchiness, redness, tearing, bleeding, and more.