How Long Does Allergic Conjunctivitis Last and Treatment Concerns? - Ophthalmology

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Allergic conjunctivitis is a common condition characterized by inflammation of the conjunctiva due to allergens such as pollen, dust mites, or pet dander. The duration of allergic conjunctivitis can vary significantly depending on several factors, including the type of allergen, the individual's sensitivity, and the effectiveness of treatment. Typically, allergic conjunctivitis can last from a few days to several weeks, especially if the allergen exposure continues. If the allergen is seasonal, such as pollen, symptoms may resolve with the end of the pollen season. However, in cases of perennial allergic conjunctivitis, symptoms may persist throughout the year.

In terms of treatment, antihistamine eye drops are commonly prescribed to alleviate symptoms such as itching, redness, and tearing. These drops work by blocking the action of histamine, a chemical released during an allergic reaction. In some cases, corticosteroid eye drops may be prescribed for more severe symptoms, as they can effectively reduce inflammation. However, as you mentioned, prolonged use of corticosteroids can lead to potential side effects, including increased intraocular pressure, which could contribute to glaucoma, especially in individuals who already have elevated eye pressure.

Given your concern about the use of steroid eye drops and your existing elevated intraocular pressure (IOP) readings of 19 and 20 mmHg, it is crucial to have a thorough discussion with your ophthalmologist. They may recommend monitoring your eye pressure more closely while you are using the steroid drops. In some cases, they might suggest alternative treatments that carry a lower risk of increasing IOP, such as non-steroidal anti-inflammatory drugs (NSAIDs) or mast cell stabilizers, which can help manage allergic conjunctivitis without the same risks associated with steroids.

If you are experiencing persistent symptoms despite treatment, it may be necessary to reassess your management plan. This could involve identifying and avoiding triggers, using cold compresses to relieve discomfort, or considering allergy testing to determine specific allergens. In some cases, immunotherapy (allergy shots) may be an option for long-term management of allergic reactions.

In summary, allergic conjunctivitis can last from days to weeks, depending on allergen exposure and individual sensitivity. While steroid eye drops can be effective, their use should be carefully monitored in patients with elevated eye pressure to avoid complications such as glaucoma. Always consult with your healthcare provider to tailor a treatment plan that addresses both your allergic conjunctivitis and your concerns about eye pressure. Regular follow-ups are essential to ensure that your treatment is effective and safe.