Conjunctival reaction refers to the response of the conjunctival tissue, which is the thin, transparent membrane that covers the front surface of the eye and lines the inner surface of the eyelids, to various stimuli or irritants. This reaction can occur due to allergies, infections, trauma, or other types of irritation.
When the conjunctiva is exposed to an allergen, such as pollen or pet dander, it can trigger an allergic reaction known as allergic conjunctivitis. This condition leads to itching, redness, swelling, and a watery or sticky discharge from the eyes.
Infections, particularly viral and bacterial infections, can also cause conjunctival reaction. Viral conjunctivitis is highly contagious and often presents with redness, tearing, and mild itching. Bacterial conjunctivitis, on the other hand, is characterized by a more severe redness, discharge, and crusting of the eyelids.
Trauma to the eye or exposure to irritants like chemicals or foreign bodies can result in a conjunctival reaction as well. This may cause redness, pain, tearing, and a gritty sensation in the affected eye.
In addition to these causes, conjunctival reactions can also occur as a side effect of certain medications and contact lens use.
Overall, conjunctival reaction encompasses a range of inflammatory responses in the conjunctiva, which can be due to allergies, infections, trauma, or irritants. Understanding the underlying cause is essential in order to effectively manage and treat the condition.
