those with mild glaucoma. this risk of failure is important when trabectome surgery is considered as a less risky alternative to traditional procedures. other factors which have been linked to intraocular pressure reduction are age, hispanic ethnicity, steroid-induced glaucoma and cup disk ratio . contradictory results have, however, been presented in the cases of ethnicity and the cup disk ratio . complications the trabectome is very safe, particularly when compared to incisional glaucoma surgery. recent research has shown the most common complications to include hyphema, peripheral anterior synechiae, corneal injury and temporary spikes in intraocular pressure. less common complications include transient hypotony lasting less than 3 months, iris injury, cystoid macular edema and cataract progression. there are case reports of a few, rare complications, including cyclodialysis cleft, aqueous misdirection, choroidal hemorrhage and endophthalmitis .