Table 2. Indications for GDI surgery.

Previous incisional conjunctival surgery

Failed trabeculectomy

Complications arising from trabeculectomy in other eye

Extracapsular cataract surgery

Pars plana vitrectomy

Scleral buckling procedures

Corneal graft surgery

Conjunctival disease

Cicatricial inflammatory scarring

Long-term antiglaucoma medication use

Uveitic glaucoma

Neovascular glaucoma

Traumatic glaucoma

Iridocorneal endothelial syndrome

Paediatric glaucoma

Congenital paediatric glaucoma

Secondary glaucoma

Iridocorneal dysgenesis

Aphakia

Aniridia

Juvenile rheumatoid arthritis

Uveitis

Sturge-Weber Syndrome

GDI: Glaucoma drainage implant.