Eye infection symptoms can include redness, pain, discharge, crusting, swelling, light sensitivity, watery eyes, blurred vision, or a sensation of something stuck in the eye. At Barnet Dulaney Perkins Eye Center, patients across Phoenix, Mesa, Chandler, Glendale, Goodyear, Surprise, Tucson, Flagstaff, and throughout Arizona can get help understanding whether symptoms point to conjunctivitis, keratitis, an eyelid infection, contact lens-related irritation, or a more serious eye problem.
Eye infections can feel minor at first. One morning, your eyelids are crusted shut. By lunch, your eyes look red and watery. Later, light feels too bright, or your contact lens suddenly becomes uncomfortable. Some infections clear with supportive care or prescription drops. Others can threaten vision if they involve the cornea or spread deeper around the eye.
The safest move is to look at the full symptom pattern, not just the redness.
Common Eye Infection Symptoms
Eye infection symptoms can vary depending on which part of the eye is affected. Some symptoms suggest a surface infection, while others point to a more urgent concern.
- Redness in one or both eyes
- Watery eyes
- Thick yellow, green, or white discharge
- Crusting around the eyelashes
- Swollen or tender eyelids
- Burning, itching, or stinging
- Eye pain
- Light sensitivity
- Blurry or distorted vision
- Foreign body sensation
- Contact lens discomfort
- A bump on the eyelid
If eye pain, light sensitivity, or vision changes are part of the picture, do not assume it is routine pink eye. Those symptoms deserve prompt evaluation.
Conjunctivitis: The Infection Most People Call Pink Eye
Viral conjunctivitis often causes watery discharge, redness, irritation, and a gritty or burning feeling. It may start in one eye and spread to the other. It can also appear with cold-like symptoms.
Bacterial conjunctivitis may cause thicker discharge, eyelid crusting, and lashes that feel stuck together after sleep. Some cases need prescription antibiotic drops or ointment, especially when symptoms are more severe or risk factors are present.
Allergic conjunctivitis usually causes intense itching, watery eyes, redness, and swelling. If itching is the strongest symptom, ocular allergies may be part of the problem.
Keratitis: When The Cornea Is Involved
Keratitis is inflammation or infection of the cornea, the clear front surface of the eye. This is one of the most important types of eye infection to recognize because corneal infections can quickly affect vision.
Possible keratitis symptoms include eye pain, redness, tearing, light sensitivity, discharge, blurred vision, and a sensation of something in the eye. Contact lens wear is a major risk factor, especially when lenses are worn overnight, exposed to water, not cleaned properly, or worn despite irritation.
If you wear contacts and develop a red, painful, light-sensitive eye, remove your lenses and seek care promptly. Do not put the same lens back in. Do not try to “push through” the irritation.
Barnet Dulaney Perkins Eye Center provides cornea care in Arizona for conditions affecting the cornea, including infections, injuries, and other surface concerns. Patients seeking to understand sharp eye pain can also read more about it.
Eyelid Infections, Styes, And Blepharitis
Not every eye infection starts in the eye itself. The eyelids can also become inflamed or infected. A stye may appear as a tender bump near the lash line. Blepharitis can cause redness, crusting, itching, burning, flaky debris, and sore eyelids.
Eyelid symptoms can make the entire eye feel irritated. The eye may water, burn, or look red because the eyelid margin helps support the tear film. When the lid becomes inflamed, the surface of the eye often suffers too.
Warm compresses and lid hygiene may help some mild eyelid conditions, but worsening pain, spreading redness, fever, vision changes, or swelling around the eye needs medical attention. For more details, patients can learn about common causes of eyelid pain.
Are Eye Infections Contagious?
Some eye infections are contagious, and some are not. Viral and bacterial conjunctivitis can spread through hand-to-eye contact, respiratory droplets, shared towels, makeup, pillowcases, contaminated surfaces, or close contact.
Keratitis is not always contagious in the same way pink eye is, but it can still be serious. Allergic eye symptoms are not contagious. Dry eye symptoms are not contagious either, even when the eyes look red or irritated.
To reduce spread, wash your hands often, avoid touching your eyes, use clean towels, do not share eye makeup or eye drops, and replace contaminated cosmetics. If you use contact lenses, follow the cleaning instructions carefully and avoid exposure to water.
Treatment Depends On The Cause
Eye infection treatment depends on what is causing the symptoms. Viral conjunctivitis usually responds to supportive care, such as artificial tears, cool compresses, and good hygiene. Bacterial infections may need antibiotic drops or ointment. Allergic symptoms may need allergy drops or trigger management. Keratitis may require urgent prescription treatment targeted to bacteria, viruses, fungi, or parasites.
Avoid using leftover prescription drops. Do not use someone else’s medication. Steroid eye drops can make some infections worse if used without the right diagnosis.
If dryness, burning, and fluctuating blur keep returning, the issue may not be an infection at all. In Arizona’s dry climate, chronic irritation can mimic infection. Patients with recurring burning, grittiness, watering, or redness may benefit from dry eye treatment in Arizona or guidance on avoiding overuse of eye drops.
Vision-Threatening Red Flags
- Moderate to severe eye pain
- New or worsening blurry vision
- Light sensitivity
- A white spot on the cornea
- Redness after wearing contact lenses
- Eye injury or chemical exposure
- Swelling around the eye
- Fever with eyelid swelling
- Symptoms after eye surgery
- A weakened immune system
- A newborn with eye redness or discharge
Light sensitivity can happen with conjunctivitis, dry eye, corneal abrasion, keratitis, and uveitis. If bright light suddenly feels painful or vision changes are present, photophobia should be taken seriously.
When To See An Eye Doctor
You should schedule an eye exam if eye infection symptoms are painful, severe, recurring, worsening, or not improving. You should also seek care if symptoms include contact lens issues, vision changes, light sensitivity, thick discharge, eyelid swelling, or a scratched eye.
A comprehensive eye exam can help determine whether your symptoms come from infection, allergies, dry eye, corneal irritation, eyelid inflammation, or another condition. Your eye doctor may check your vision, eyelids, tear film, cornea, eye pressure, pupils, and the inside of the eye.
Barnet Dulaney Perkins Eye Center provides medical eye care at locations across Arizona. If you are unsure what type of appointment you need, the team can help direct you based on your symptoms, vision needs, and eye health history.
If your eye is red, painful, light sensitive, or affecting your vision, do not wait. Schedule an eye exam online or seek emergency care for severe symptoms.