It has been shown in previous research that there is increased outflow resistance and as such reduced outflow facility in
the trabecular meshwork in primary open-angle glaucoma patients.1 A potential treatment to increase the outflow facility is implantation of a trabecular microbypass stent. In his research,
Dr Colin Willoughby (Belfast Health and Social Care Trust and Cathedral Eye Clinic, Belfast, Northern Ireland) looked at a
treatment that would provide an effective solution for POAG patients with uncontrolled intraocular pressure (IOP) despite
maximal medical treatment with evidence of progressive disease, particularly if combined with phacoemulisification.
"It is not uncommon in clinical practice to see POAG patients progressing with IOP in the low twenties despite maximal medical
therapy. I was looking for a treatment with a low post-operative risk profile. I was also keen to utilise a treatment which
would not preclude future trabeculectomy or drainage surgery," Dr Willoughby said.