Conjunctivitis, commonly known as “pink eye,” can be classified into several types based on its cause. Here are the main types:

Viral Conjunctivitis:-
– Cause: Viruses, such as adenovirus.
– Symptoms: Red, itchy eyes with a watery discharge. Often starts in one eye and spreads to the other.
– Contagious: Highly contagious.

Bacterial Conjunctivitis
– Cause: Bacteria, such as Staphylococcus aureus or Streptococcus pneumoniae.
– Symptoms: Red eyes with a thick, yellow-green discharge. Can affect one or both eyes.
– Contagious: Highly contagious.

Allergic Conjunctivitis
– Cause: Allergens like pollen, dust mites, or pet dander.
– Symptoms: Red, itchy, and watery eyes. Often accompanied by other allergy symptoms like sneezing and a runny nose.
– Contagious: Not contagious.

Chemical Conjunctivitis
– Causes: Irritants such as smoke, chlorine in swimming pools, or chemical fumes.
– Symptoms: Red, watery eyes with a burning sensation.
– Contagious: Not contagious.

Autoimmune/Inflammatory Conjunctivitis
– Cause: Underlying autoimmune conditions, such as rheumatoid arthritis or lupus.
– Symptoms: Red, irritated eyes with varying types of discharge.
– Contagious: Not contagious.

Each type of conjunctivitis has its own set of causes, symptoms, and treatments. If you suspect you have conjunctivitis, it’s important to consult a healthcare provider for an accurate diagnosis and appropriate treatment.