Background: The aim was to present the surgical treatment of secondary glaucoma in a case of anterior pseudophakia after removal of a congenital cataract as well as the treatment of secondary glaucoma in a case of recurrent uveitis.
Case Report: The first case was a 24-year-old woman who was operated at the age of 8 years due to congenital cataract in both eyes. Anterior lenses were implanted bilaterally, which caused secondary glaucoma resistant to pharmacological treatment. The second patient was a 22-year-old woman with recurrent uveitis in both eyes complicated by cataract, cornea-iris synechia, and absolute closure of the filtration angle. After bilateral cataract removal there was no decrease in intraocular pressure (IOP). The decision was made to implant an Ahmed Glaucoma Valve in both cases.
Conclusions: Implantation of the Ahmed drainage systems in selected cases of refractory glaucoma could be a useful method of IOP regulation.

Keywords: refractory glaucoma, Ahmed Glaucoma Valves, treatment