How Do You Know If You Have Conjunctivitis? Symptoms and Signs to Recognize

Conjunctivitis Symptoms, Diagnosis and Treatment

Conjunctivitis, commonly known as pink eye, is an inflammation of the conjunctiva—the thin, transparent layer of tissue that lines the inner eyelid and covers the white part of the eye. When the small blood vessels in this membrane become inflamed, they become more visible, giving the eye its characteristic red or pink appearance.

This condition can occur at any age but is most common in school-aged children, parents, and individuals who work in close-quarter environments like offices or classrooms.

What is Conjunctivitis?

Conjunctivitis is an infection or inflammation of the eye surface. While the conjunctiva normally helps keep the eyelid and eyeball moist, inflammation can cause significant irritation, discharge, and discomfort.

Conjunctivitis may be caused by viruses, bacteria, or—less commonly—fungi. Viral conjunctivitis is often linked to respiratory infections such as the common cold or adenovirus, while bacterial conjunctivitis is frequently caused by Staphylococcus aureus or Streptococcus pneumoniae.

If you suspect conjunctivitis, common symptoms include:

• Inflammation of the protective eye lining
• Disrupted tear film and increased sensitivity
• Fluid, crust, or mucus accumulation around the eyelids
• A persistent itchy or burning sensation 

Urgent care centers can assist in early evaluation and treatment to reduce the duration of the infection and prevent its spread to others.

Types of Conjunctivitis: Viral vs. Bacterial

As noted above, conjunctivitis can stem from different infectious agents, with viral and bacterial being the two most common contagious forms.

Viral conjunctivitis often develops from viral respiratory illnesses. Symptoms may begin mildly in one eye and quickly spread to the other. It usually produces a watery, thin discharge and does not respond to antibiotics; it must simply run its course.

Bacterial conjunctivitis is typically more sudden and can be more severe. Symptoms often include a thick, yellow or green discharge that may cause the eyelids to stick together overnight. Bacterial conjunctivitis usually requires antibiotic treatment.

Understanding whether conjunctivitis is viral or bacterial is important, as treatment varies significantly. Viral cases improve with supportive care, while bacterial cases require targeted antibiotics to resolve the infection and reduce contagiousness.

Conjunctivitis Symptoms: What to Look For

Conjunctivitis symptoms can vary based on the cause of the inflammation and the patient’s overall health. Symptoms may progress gradually or appear quite suddenly.

Common symptoms include:

• Redness in the whites of the eyes
• Increased tearing or “watery eyes”
• Itching, burning, or a gritty sensation

Additional symptoms may include:

• Sensitivity to light
• Blurred vision (usually cleared by blinking)
• Thick or discolored discharge

In many cases, a viral infection may begin with symptoms similar to a cold or flu before progressing into the eye. As the inflammation increases, the eye may produce excess fluid or crusting, making it difficult to open the eyes upon waking.

A “gritty” feeling is common in most types of pink eye. If the discharge becomes thick and discolored or if you experience significant eye pain, evaluation by a clinician is necessary.

Causes and Risk Factors for Conjunctivitis

Conjunctivitis occurs when viruses, bacteria, or allergens irritate the eye, leading to inflammation. Transmission occurs easily through direct contact with infected eye secretions or contact with contaminated surfaces like towels, doorknobs, or makeup.

Risk factors include:

• Exposure to someone infected with pink eye
• Use of contact lenses, particularly extended-wear lenses
• Seasonal allergies or sensitivity to environmental triggers
• Recent respiratory infections or “common colds”
• Touching the eyes with unwashed hands

Environmental exposures such as chlorine in swimming pools, smoke, or dust can also increase susceptibility. Understanding individual risk factors helps clinicians tailor treatment plans and provide preventive guidance.

Diagnosing Conjunctivitis

Diagnosing conjunctivitis typically requires a physical examination by a healthcare professional. An urgent care clinician will examine the eye for redness and swelling and ask about the type of discharge you are experiencing.

Additional evaluations may include:

• Visual acuity test to ensure vision is not affected
• Examination of the external eye tissue and internal structures
• Swab of the eye discharge (in severe or chronic cases)
• History of recent illness or allergy exposure

These evaluations help differentiate between the various causes of pink eye and determine the most effective treatment. Early diagnosis is important, especially for students or workers who need to know when it is safe to return to their routine.

Conjunctivitis Management and Treatment

Treatment depends on whether the conjunctivitis is viral, bacterial, or allergic. Bacterial cases require antibiotics, which are effective in clearing the infection. Viral cases do not respond to antibiotics; treatment focuses on managing symptoms and supporting the immune system.

General treatment recommendations include:

• Adequate rest and avoiding eye strain
• Using cool or warm compresses to soothe inflammation
• Over-the-counter artificial tears for comfort
• Discontinuing contact lens wear until symptoms resolve

In more severe cases of bacterial infection, prescription antibiotic drops or ointments are needed. Patients should seek medical care if symptoms worsen or if they experience significant pain or vision changes.

Chronic or Recurrent Conjunctivitis: Long-Term Care

Some individuals may experience recurrent conjunctivitis due to underlying health conditions, chronic allergies, or issues with contact lens hygiene. In these cases, long-term management focuses on preventing future flare-ups and protecting the cornea.

Long-term strategies may include:

• Regular follow-ups with an eye care specialist
• Identifying and avoiding specific allergens (pollen, pet dander)
• Rigorous hygiene for contact lenses or switching to daily disposables
• Using prescribed anti-inflammatory drops if chronic inflammation exists

For individuals with chronic conditions or those who wear contacts, monitoring eye health and practicing strict hygiene is essential. Specialized care may be recommended if episodes occur frequently.

Preventing Conjunctivitis: Practical Strategies

Prevention is an important part of reducing the risk of spreading pink eye. Healthy habits and routine hygiene significantly lower the likelihood of infection.

Preventive measures include:

• Frequent handwashing with soap and water
• Avoiding sharing towels, washcloths, or pillowcases
• Replacing eye makeup regularly and not sharing it with others
• Properly disinfecting contact lenses

CareFirst provides evaluations and guidance on eye health with fast, convenient service—typically under an hour—making it easy to get the care you need.

When to Seek Professional Care

Conjunctivitis can become uncomfortable quickly, and some forms can lead to complications if left untreated. You should seek professional care if you experience:

• Severe eye pain or reduced vision
• Intense redness in the eye
• Symptoms that do not improve with initial home care
• A weakened immune system (due to other medical conditions)
• Signs of a more serious infection, such as high fever

CareFirst Urgent Care is open and available with convenient hours and walk-in availability. Visits often last less than one hour, so you can get in and out—on your schedule! We also accept all types of insurance to make sure that your visit is straightforward and affordable. Find a CareFirst Urgent Care location near you today!