Transient uniocular blindness after dental extraction under general anaesthetic.

A 14-year-old boy suffered transient uniocular blindness after extraction of four permanent first molar teeth under general anaesthetic. We discuss the theoretical basis for ocular vasospasm secondary to the minor trauma of dental extraction being relayed to the orbit.

Spontaneous passage of a dacryolith.

A patient had four episodes of recurrent dacryolith over 14 years. Each attack of acutely painful dacryocystitis was terminated by spontaneous passage of the dacryolith. Biochemical and dacryocystographic evidence help to explain the pathogenesis of the condition.