Introduction

Coagulation of the ciliary body via transscleral diode laser cyclophotocoagulation (cyclodiode) of the ciliary body is a therapeutic option for numerous types of glaucoma. It is commonly used in patients with refractory glaucoma for a temporising effect prior to drainage procedures, as an adjunct to surgery, in patients who are precluded from undergoing general anaesthesia, or in individuals who have no visual potential and need pain relief.1 Typically, the probe is applied to a point corresponding to the pars plicata of the ciliary body. This has been historically identified as 1–2 mm behind the limbus or via transillumination.

Recognition of the location of the ciliary body is paramount to correctly performing this procedure. Accurate identification is of special concern in paediatric glaucoma patients, as the actual position of the ciliary body may vary by axial length, quadrant of the eye and between individuals.2 Identification of the ciliary body in the paediatric glaucoma population also poses a …