While the so-called ‘gold standard’ for raised IOP has been surgical trabeculotomy, this technique is now generally acknowledged to provide relatively poor clinical outcomes for stabilising IOP. One development within conventional trabeculotomy surgery, however, has been the emergence of the Trabecutome surgical technique where a miniaturised diathermy tool is used to ablate tissue within specific angular zones of the trabecular meshwork (typically between 60 and 120 degrees). This technique, initially developed by Dr Baerveldt,1 effectively removes layers of tissue which restrict fluid outflow and during the surgical technique ablated tissue fragments are removed from the eye by the aspiration channel of the device.
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