ISSN: 2155-9570
Vyhnalkova K, St Helens and Knowsley
Teaching Hospitals NHS Foundation Trust, UK
Posters & Accepted Abstracts: Clin Exp Ophthalmol
Introduction: The aim was to support evidence on the safety and efficacy of XEN implant.
Methods: Subjects were 16 patients, 19 eyes with POAG (Primary Open Angle Glaucoma) and 2 with NTG
(Normal Tension Glaucoma) treated with PhacoXEN or XEN implant. Outcome data for this study were collected
retrospectively from EDMS (Electronic Document Management System) used as a main source. The implant
insertions were performed by one surgeon in one hospital followed by a check-up after one week, one month, three
months, six months, 12 months, and 18 months. The study focused on IOP reduction and the number of medications
used before and after XEN45� Implant insertion. IOP reduction of �20% at 18 months and complete elimination of
medications was deemed to be successful.
Results: IOP dropped from 21.00 �± 5.33mmHg pre-operatively to 16.22 �± 5.18mmHg (19.54%), 15.65 �± 4.32mmHg
(23.60%) and 15.54 �± 4.77mmHg (29.71%) in 6 months, 12 months and 18 months, respectively. There was a
statistically significant reduction in IOP in 56% of eyes at 18 months. Mean number of medications decreased from
3.06 pre-implant to 0.80, 1.00 and 0.50 post implant in 6, 12 and 18 months respectively.
Discussion: This subconjunctival device provides a safe and efficient treatment of POAG by long-term IOP lowering.
It significantly reduces the need for topical medication.