Is It Allergies or an Eye Infection? How to Tell the Difference

Itchy, red, or watery eyes can be uncomfortable and disruptive. But when these symptoms strike, how can you tell whether you’re dealing with seasonal allergies or an eye infection? While both conditions may seem similar at first glance, there are key differences that can help you determine the cause and guide you toward the right treatment.

Common Signs of Eye Allergies

Eye allergies, also known as allergic conjunctivitis, occur when your eyes react to allergens like pollen, pet dander, or dust. Typical symptoms include:

• Itching: One of the most noticeable signs of allergies is persistent eye itching.

• Redness: Blood vessels in the eyes become inflamed, leading to a red or pink appearance.

• Watery Eyes: Tear production increases in response to allergens.

• Both Eyes Affected: Allergies usually impact both eyes at the same time.

• Timing: Symptoms often flare up during allergy seasons (spring and fall) or in specific environments.

Allergies can be frustrating, but they are generally not contagious.

Warning Signs of an Eye Infection

Eye infections, such as bacterial or viral conjunctivitis, are caused by germs rather than allergens. Symptoms may include:

• Discharge: Bacterial infections often cause thick, yellow or green discharge, while viral infections may cause watery discharge.

• Swelling: Eyelids and surrounding tissue may become swollen or tender.

• Pain or Sensitivity: Infections may cause discomfort, pain, or light sensitivity.

• One Eye First: Infections often start in one eye before spreading to the other.

• Contagiousness: Viral and bacterial conjunctivitis are contagious and can spread easily.

Unlike allergies, infections usually require medical evaluation and may need prescription treatment.

When to See an Eye Doctor

If you’re unsure whether your symptoms are due to allergies or an infection, the safest choice is to schedule an eye exam. Our eye doctor can properly diagnose the cause of your discomfort and recommend the right treatment for your situation.

In some cases, it’s important to seek care right away. Warning signs include sudden changes in vision, severe pain, or sensitivity to light. You should also contact your doctor if you notice thick or worsening discharge, or if your symptoms don’t improve with over-the-counter allergy medications. These could be signs of an infection or another eye condition that requires prompt medical attention.

Take Control of Your Eye Health Today

Distinguishing between eye allergies and an infection can be tricky, but paying attention to specific symptoms can provide important clues. When in doubt, visiting your optometrist ensures you receive the right diagnosis and treatment to protect your eye health.

If you’re experiencing red, itchy, or irritated eyes, schedule your comprehensive eye exam at Texas State Optical and get the relief you deserve. Visit our office in Fredericksburg, Texas, or call (830) 992-3286 to book an appointment today.