- Adenovirus, enterovirus (non-polio), other
- Rarely: measels, zika, other
- Redness of conjunctiva, with watery discharge (less red, less d/c compared w/bacterial)
- Sometimes URI sx
- No visual change
- Uni- or bilateral
- Gritty sensation
- Diffuse redness of conjunctiva
- Sometimes pre-auricular adenopathy
- Hand hygiene, as easily spread