Eye Infections: Types, Symptoms, and When to See a Doctor
Red, itchy, or swollen eyes? You might be dealing with an eye infection. These are common and usually treatable—but ignoring the symptoms can lead to complications. Whether it's from bacteria, viruses, or allergies, here’s what you need to know about keeping your eyes healthy and protected.
👁️ What Is an Eye Infection?
An eye infection occurs when harmful microorganisms (like bacteria, viruses, or fungi) invade any part of the eye or surrounding tissue. This can affect the eyelid, the conjunctiva (the thin layer covering the white part of the eye), or even the cornea.
🦠 Common Types of Eye Infections
1. Conjunctivitis (Pink Eye)
Very common and contagious
Causes redness, discharge, itching
Can be viral, bacterial, or allergic
2. Stye (Hordeolum)
Red, painful bump on the eyelid (like a pimple)
Caused by a bacterial infection of an eyelash follicle
3. Blepharitis
Inflammation of the eyelids
Symptoms include irritation, crusting, and swelling
4. Keratitis
Infection of the cornea
Can cause eye pain, blurred vision, and sensitivity to light
Often linked to contact lens misuse
⚠️ Signs and Symptoms to Watch For
Redness and swelling
Itching or burning sensation
Watery or sticky discharge
Gritty feeling or light sensitivity
Blurred vision or eye pain
🩺 When to See a Doctor
You should consult an eye doctor if:
Symptoms last more than 2–3 days
You experience pain, vision changes, or swelling
The discharge is thick or green/yellow
You're a contact lens wearer with symptoms
💡 Tips for Prevention
Wash your hands before touching your eyes or applying makeup
Avoid sharing towels, pillowcases, or cosmetics
Clean contact lenses properly and don’t sleep in them
Replace eye makeup regularly
Wear protective eyewear in dusty or dirty environments
Final Thoughts
Eye infections can be uncomfortable—but most are treatable with simple care or medication. Catching the symptoms early and maintaining good hygiene are your best defense. If you're unsure about what's causing your symptoms, don’t wait—see a doctor for a proper diagnosis and peace of mind.
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