How to Treat Eye Allergies and Find Lasting Relief

What Can Trigger Eye Allergies?

Eye allergies, also known as allergic conjunctivitis, occurs when the immune system reacts to a substance it sees as harmful, even though that substance is usually harmless. Common allergens include pollen, pet dander, mold spores, and dust mites. Some triggers can cause symptoms throughout the year. These are known as perennial allergens and are often found indoors. Pet dander, household dust, and indoor mold are common examples. 

Other allergens are seasonal. Tree pollen, grass pollen, ragweed, and other outdoor allergens may cause symptoms during certain times of the year and may become more noticeable when pollen counts are high. 

When you come into contact with an allergen, your body releases histamine. Histamine causes blood vessels in and around the eyes to widen and contributes to redness, swelling, itching, and excessive tearing. This response can happen quickly after exposure. 

Symptoms of Eye Allergies

Eye allergy symptoms can range from mild irritation to more noticeable discomfort. Common signs include:

• Burning sensation 

• Itchy eyes 

• Redness 

• Puffy eyelids 

• Tearing 

These symptoms do not always mean allergies are responsible. Viral and bacterial conjunctivitis may cause similar redness, tearing, and irritation, and dry eye can also cause burning and watery eyes. 

An eye doctor can help determine the cause by reviewing your symptoms and examining the eye surface. In some cases, additional testing through a primary care doctor or allergy specialist may help identify specific allergens. 

How to Limit Exposure to Allergy Triggers

Avoiding allergens is one of the most effective ways to reduce eye allergy symptoms, although this is not always easy. 

If pet dander is a trigger, limiting close contact and keeping pets out of bedrooms may help. For pollen allergies, try keeping windows closed, using air conditioning, and spending more time indoors when pollen levels are particularly high. 

Mold allergies may become worse in damp conditions. Keeping wet leaves, compost, and other organic material away from the home may help reduce exposure. You may also want to limit outdoor activities during periods when mold levels are high. 

Dust mites can be harder to avoid because they live in bedding, carpets, upholstered furniture, and other fabrics. Washing bedding and clothing regularly in hot water, cleaning carpets, and choosing washable curtains or non-fabric furniture may help reduce the amount of dust and allergens in your environment. 

Eye Allergy Treatment Options

When you cannot avoid allergens completely, treatment focuses on removing allergens from the eye surface, calming the allergic response, and helping prevent future flare-ups. Mild symptoms may improve with home care and lubricating drops. Over-the-counter medications can offer additional relief, while persistent or severe symptoms may require prescription treatment from an eye doctor. 

Allergen Avoidance and Home Care

After spending time around a known allergen, wash your face and consider showering before going to bed. This can help remove pollen, pet dander, and other particles before they transfer to your pillow and bedding. 

Wash clothes and bedding regularly, and avoid cigarette smoke or other irritants that may make allergy symptoms worse. If you wear contact lenses, keep them and your lens case clean and follow the recommended replacement schedule. Wearing glasses instead of contacts on high-pollen days may also reduce irritation. 

A cool compress can help with itching and eyelid swelling. Wet a clean washcloth with cool water, wring it out, and rest it over your closed eyes for approximately 10 to 15 minutes. 

Antihistamine Drops and Artificial Tears

Artificial tears can help wash allergens from the surface of the eye while also relieving dryness, burning, and grittiness. If you use drops several times a day, preservative-free formulas may be more comfortable, especially for sensitive eyes. 

Antihistamine eye drops work by blocking histamine, the chemical responsible for many allergy symptoms. Depending on the product, these drops may be used once or twice daily and can help reduce itching, redness, and watering. 

Redness-relief drops are also available over the counter. These products temporarily narrow surface blood vessels so the eyes look less red, but they do not treat the allergic reaction itself and are generally not intended for frequent or long-term use. 

Medicines

Oral antihistamines may help when eye symptoms occur along with sneezing, congestion, an itchy nose, or other allergy symptoms. However, some antihistamine tablets can contribute to dry eye, so lubricating drops may also be needed. 

If home care and OTC products are not providing enough relief, your eye doctor may recommend prescription treatment. Mast-cell stabilizer drops help prevent certain cells from releasing chemicals involved in allergic reactions. 

Some medications combine antihistamine and mast-cell stabilizing effects. Examples include Elestat® (epinastine), Zaditor® (ketotifen), and Patanol® (olopatadine hydrochloride). These types of drops may help control itching, burning, redness, and tearing. 

For severe inflammation, an eye doctor may prescribe steroid eye drops for short-term use. Steroid drops can affect eye pressure and increase the risk of infection and other complications, so they should only be used under professional supervision. 

Which Eye Drops Are Best for Eye Allergies?

The best eye drop for allergy symptoms depends on what you are experiencing, how often symptoms occur, and what is causing them. Some drops mainly rinse and lubricate the eyes, while others target the allergic response itself.   

Common types include:

• Artificial Tears: Lubricating eye drops can help rinse pollen, dust, and other allergens from the surface of the eye while relieving dryness and irritation. Preservative-free artificial tears may be useful for people who need drops frequently or are sensitive to preservatives. 

• Antihistamine Eye Drops: These drops block histamine, a chemical released during an allergic reaction. They may provide relief from itching, redness, and watering associated with eye allergies. 

• Antihistamine and Mast-Cell Stabilizer Drops: Combination drops can relieve current allergy symptoms while also helping reduce the release of chemicals involved in future allergic reactions. They may be especially useful for recurring seasonal symptoms. 

• Redness-Relief Drops: Some over-the-counter drops temporarily constrict blood vessels to make the eyes appear less red. However, they do not treat the underlying allergic response and may not be the best option for frequent or long-term use. 

• Prescription Anti-Inflammatory or Steroid Eye Drops: More severe or persistent eye allergies may require prescription treatment. Steroid eye drops can have important side effects and should only be used under the supervision of an eye doctor. 

If you are unsure which type of eye drop is right for you, or OTC treatments are not controlling your symptoms, schedule an eye exam at eyecarecenter. An optometrist can determine whether allergies or another eye condition may be responsible and recommend treatment based on your symptoms.

Eye Conditions with Similar Symptoms to Allergic Conjunctivitis

Not every red, watery, or irritated eye is caused by an allergy. Several other conditions may produce symptoms that resemble allergic conjunctivitis, including:

• Allergic rhinitis, also known as hay fever, is an allergy that causes symptoms like sneezing, congestion, an itchy nose, and a sore throat. 

• Dry eye is a common condition that occurs when tears can’t provide enough lubrication for your eyes. This tear instability will lead to inflammation and damage to the eye’s surface.  

• Pink eye (seasonal allergies conjunctivitis) is an inflammation of the transparent membrane that lines your eyelid. Pink eye is typically caused by bacteria, allergic reaction, or, in babies, an opened tear duct. 

If you notice any of these symptoms, contact an eye care professional at eyecarecenter. 

Eye Allergies vs. Pink Eye: What’s the Difference?

Eye allergies and pink eye can both cause redness, watering, and irritation, but there are a few clues that may help distinguish them.  

Intense itching is especially common with allergic conjunctivitis. Allergy symptoms also tend to affect both eyes and may occur along with sneezing, congestion, or a runny nose. Viral conjunctivitis often causes watery discharge and may begin in one eye before spreading to the other. Bacterial conjunctivitis is more likely to cause thick discharge or crusting around the eyelids. Allergic conjunctivitis is not contagious, while viral and bacterial forms of pink eye can spread from person to person.

Because symptoms can overlap, do not rely on appearance alone. Contact an eye doctor if symptoms are severe or persistent or if you experience eye pain, significant light sensitivity, vision changes, or unusual discharge.

What eyecarecenter Doctors Look for During Eye Allergy Exam

Eye allergy symptoms can resemble dry eye, infection, contact lens irritation, and other conditions. During an exam, your eyecarecenter doctor will look at both your symptoms and your overall eye health to determine what may be causing the irritation.   

Your exam may include:

• A review of your symptoms and triggers: Your doctor may ask when symptoms started, whether they are seasonal or year-round, if one or both eyes are affected, and whether you also have itching, tearing, redness, swelling or discharge. 

• An evaluation of the eye surface: The conjunctiva and cornea may be examined for signs of inflammation, dryness, irritation or other conditions that can mimic allergies. 

• A check for signs of infection: The type of redness or discharge you have can help your doctor determine whether viral or bacterial conjunctivitis may be a concern. 

• An eyelid examination: Swelling, inflammation and other eyelid conditions can contribute to itching and irritation. 

• A tear-film assessment: Dry eye can occur alongside allergies and may worsen burning, watering or discomfort. 

• A contact lens review: If you wear contacts, your doctor may evaluate your lens fit, replacement schedule and care routine to see whether they are contributing to your symptoms. 

• A review of current treatments: Your doctor may ask which over-the-counter drops, allergy medicines or other treatments you have tried and how well they are working.