Struggling with itchy, watery eyes this summer? You are likely dealing with an eye allergy. Also known as allergic conjunctivitis, eye allergies affect up to 40% of the global population and are especially prevalent during the warmer months. While symptoms can often be managed at home, they can also overlap with more serious eye conditions, so it’s especially important to know when to seek professional care.
At eye. Optometry, our optometrists routinely help patients identify and manage allergic eye conditions. Here’s what you need to know the next time your symptoms begin to flare up.
Seasonal allergic conjunctivitis is the most commonly experienced eye allergy. As its name suggests, symptoms typically emerge in the spring and summer, when trees, weeds and grasses release high concentrations of pollen into the air. For many people, antibodies in the eyes overreact to these airborne allergens and trigger the release of histamine; a chemical that causes tiny blood vessels in the eye to leak and swell, leading to watering in the eyes.
Non-seasonal triggers are also common. Fragrances, cigarette smoke and diesel exhaust can all provoke a similar inflammatory reaction. When your eyes attempt to expel these foreign particles, it is common to experience excessive tearing and a burning sensation.
While seasonal allergic conjunctivitis tends to present during warmer weather, perennial allergic conjunctivitis persists throughout the year. It is usually triggered by indoor allergens, such as pet fur, dust mites or exposure to mold, rather than the outdoor allergens responsible for seasonal allergic conjunctivitis. Symptoms of the perennial form are similar to seasonal allergies, albeit slightly milder.
Individuals suffering from seasonal allergic conjunctivitis may have chronic dark underyes, known as allergic shiners. Due to the abnormally swollen nasal passages, it is more difficult for blood to drain from the smaller facial veins, and blood begins to pool underneath the eyes instead. If your dark under-eyes haven’t been improving with more sleep, your allergies may be the main culprit.
Eye allergies and pink eye (also known as conjunctivitis) share many of the same symptoms. Itching tends to be more pronounced with allergies, while pink eye is more likely to cause swelling, redness or crusting in just one eye. Allergies usually affect both eyes simultaneously, whereas pink eye commonly starts in one eye before potentially spreading to the other.
However, distinguishing between the two is not always straightforward. Since pink eye may have bacterial or viral origins and may require prescription treatment, the most reliable way to get a definitive diagnosis is through a professional eye exam. At eye. Optometry, our comprehensive eye exams are designed to assess both your vision and the overall health of your eyes, including identifying and differentiating conditions like pink eye to minimize disruptions to your daily life.
To alleviate allergic conjunctivitis at home, apply a cold compress to the affected eye. You can soak a clean washcloth in a bowl of cold water and wring out the excess, or simply wrap a clean towel over a pack of ice or frozen vegetables. Leave the compress on for 5 to 10 minutes at a time, repeating throughout the day as needed. The cold temperature can help to reduce inflammation and puffiness by constricting blood vessels around the eye.
Additional steps you can take to prevent further aggravation include:
You may also visit your nearest drug store for over-the-counter preservative free artificial tears, which can help to wash away allergens and restore moisture to dry, irritated eyes. For best results, we recommend refrigerating the drops before use.
If home remedies and over-the-counter medication have not provided meaningful relief after 1 to 2 weeks, it may be best to consult an eye care professional. Persistent redness or itching may point to an underlying condition that requires targeted treatment, and self-diagnosing may further delay the care you need.
Professional care should be sought immediately if you experience any of the following symptoms:
eye. Optometry offers eye emergency services for urgent eye health concerns. Our experienced optometrists will work with you to help diagnose and address the cause behind your symptoms before determining the most appropriate course of treatment, whether it’s prescription-strength eye drops, allergy management strategies or a referral to a specialist.
When you come in for your appointment it’s helpful to bring a note of your symptoms, how long you have been experiencing them for and which at-home treatments you’ve already tried. The more context your optometrist has, the more tailored your care plan will be.
Your optometrist may prescribe antihistamine or anti-inflammatory eye drops with a stronger efficacy than what is available over-the-counter. In more persistent cases, they may recommend allergy shots, a longer-term approach in which small, controlled doses of allergens are gradually introduced to train your immune system to tolerate them. Over time, this can significantly reduce the severity of your allergic response.
Wearing contact lenses can worsen allergy symptoms, as allergens and debris accumulate on the lens surface throughout the day, increasing irritation and the risk of infection. During peak allergy season, switching to daily disposable lenses can help minimize buildup. Your optometrist may also recommend taking a break from contact wear on high-pollen days, or switching to glasses temporarily. At eye. Optometry, we carry a range of contact lens options and can help you find a solution that keeps your eyes comfortable year-round. Book a contact lens consultation to discuss what works best for you.
Though the two conditions share several symptoms and can occur at the same time, they are not quite the same. Dry eye syndrome develops when your eyes don’t produce enough tears, or when the quality of those tears is poor. Eye allergies, by contrast, are driven by an immune response to specific allergens. That said, chronic allergic inflammation can disrupt the tear film and worsen dry eye symptoms. Our optometrists can help determine whether your symptoms are allergy-related, dry eye-related, or a combination of both, to ensure your treatment plan is as targeted as possible.
