EDITOR—Neither Everitt et al nor Rietveld et al seem to have consulted an ophthalmologist when designing their studies.1 2 There is little evidence base to back up the clinical features of a condition that many practitioners take for granted. Ophthalmologists, in particular, are aware that adenoviral conjunctivitis tends to follow a distinct clinical pattern: patients often complain of watering and “grittiness” (initially in one eye before involvement of the other), …