Vernal Keratoconjunctivitis
Causes
Vernal keratoconjunctivitis is a chronic allergic condition commonly seen in young males, often associated with a family history of allergies. It is triggered by environmental allergens and may worsen during specific seasons.
Signs and Symptoms
Symptoms include severe itching, redness, tearing, photophobia (sensitivity to light), and a sensation of foreign body in the eye. Giant papillae may form on the inner surface of the eyelids.
Management
Treatment may involve topical antihistamines, mast cell stabilizers, corticosteroids, and immunomodulators. Cold compresses and avoiding allergens can also help alleviate symptoms.
Allergic Conjunctivitis
Causes
Allergic conjunctivitis is caused by exposure to allergens such as pollen, dust, mold, or pet dander. It can occur seasonally (hay fever) or throughout the year (perennial allergic conjunctivitis).
Signs and Symptoms
Symptoms include itching, redness, tearing, swelling of the eyelids, and a gritty sensation in the eyes. Symptoms may be accompanied by nasal congestion and sneezing.
Management
Treatment involves avoiding allergens when possible, using artificial tears, antihistamine eye drops, mast cell stabilizers, and non-steroidal anti-inflammatory drugs (NSAIDs). Oral antihistamines may also be recommended.
Phlyctenular Conjunctivitis
Causes
Phlyctenular conjunctivitis is an allergic reaction to bacterial antigens, often associated with staphylococcal infections or tuberculosis. It can also be triggered by exposure to environmental irritants or allergens.
Signs and Symptoms
Symptoms include small, raised nodules (phlyctenules) on the conjunctiva, redness, tearing, and discomfort. Corneal involvement may lead to photophobia and blurred vision.
Management
Treatment may involve topical antibiotics for associated infections, corticosteroids to reduce inflammation, and avoiding potential triggers.
Atopic Conjunctivitis
Causes
Atopic conjunctivitis is a chronic allergic condition associated with atopic dermatitis (eczema) and other allergic diseases. It is often triggered by allergens such as dust mites, pollen, or animal dander.
Signs and Symptoms
Symptoms include itching, redness, swelling of the eyelids, and thickening of the skin around the eyes. Patients may also experience a history of atopic dermatitis or other allergic conditions.
Management
Treatment involves topical antihistamines, corticosteroids, and emollients to relieve symptoms and maintain skin hydration. Avoiding triggers and practicing good skin hygiene are also essential.