What is the difference between viral and bacterial conjunctivitis (pink eye)?
Viral Conjunctivitis • Unilateral or bilateral • Cause; adenovirus • Moderate congestion • Mild chemosis • Mild subconjunctival hemorrhage • Watery discharge • No papillae • Follicles present • Pseudomembrane present • No pannus • Moderate involvement of peri-auricular lymph nodes • Complication; Pharyngitis Bacterial Conjunctivitis • Usually unilateral • Cause; S. aureus, S. pneumonia, H. influenza • Marked congestion • Moderate chemosis • Mild subconjunctival hemorrhages • Purulent or mucopurulent discharge • Papillae present • Pseudomembrane present • No pannus • Mild involvement of peri-auricular lymph nodes • Complication; Otitis media