The latest edition of the journal Orbit (a journal dealing with eyes, not planets) describes an uncommon infection linked to a pet dog. The article (Zuberbuhler et al 2012) outlines ‘acute unilateral dacryocystitis‘ in a 23-month-old girl (translation: .acute=sudden, unilateral=one side, dacryocystitis=inflammation of the nasolacrimal system, which is made up of a…