Red itchy eye(s), thin exudate; pain, photophobia – Viral pink eye: adenovirus

Red eye, pus:- Staphylococcus aureus- Streptococcus pyogenes- Streptococcus pneumoniae- Haemophilus influenzae

Red eye, pus, presence of inclusion bodies in scrapings – Chlamydia trachomatis serotypes D-K (inclusion conjunctivitis)

Granulomas and inturned eye lashes, corneal scarring, blindness – Chlamydia trachomatis serotypes A-C (trachoma)