Summary

Surgical treatment options for dogs with glaucoma when the eye is still visual but intraocular pressure cannot be adequately controlled with medication alone. Surgery is typically considered within a short window to preserve vision. Two main procedures are described. Diode laser cyclophotocoagulation (CPC) uses a transcleral laser to destroy part of the ciliary body to reduce fluid production, controlling pressure in about 50–80% of cases for 6–12 months, though effects may take days to weeks and complications can occur. Aqueous shunt implantation places a small tube to drain fluid from the eye, providing more immediate pressure control with success rates of about 50–90% for up to a year. Both procedures require general anesthesia, hospitalization, and close post‑operative monitoring due to potential short‑ and long‑term complications.