Retrospective Evaluation of Surgical Outcomes in Cats With Glaucoma Following Diode Endoscopic Cyclophotocoagulation
Abstract
Objective: To describe the post-operative IOP control and visual status up to 12 months following endocyclophotocoagulation (ECP), and to characterize post-operative complications following the use of ECP for the treatment of glaucoma in cats.
Methods: A retrospective analysis of glaucomatous cats treated with ECP between 2020 and 2025 was performed. Signalment factors, individual case factors, and surgical factors were assessed and compared against surgical outcomes.
Results: Twenty-two eyes from 15 cats met the inclusion criteria. Causes of glaucoma included primary open-angle glaucoma, Feline aqueous humor misdirection syndrome, chronic uveitis, lens subluxation, anterior segment dysgenesis, and toxic anterior segment syndrome following phacoemulsification. All cats received a lensectomy via phacoemulsification or intracapsular lens extraction, followed by ECP. Successful IOP control (≤ 30 mmHg) was achieved in 86% and 94% of cases at three months and one year. Vision was present in 77% and 71% of cases at three months and one year. Of the eyes that were visual pre-operatively, vision was retained in 93% and 100% of cases at three months and one year. There was no effect of signalment on IOP control or vision retention at any time point evaluated. The most common post-operative complication was corneal ulceration, occurring in 36% of cases.
Conclusions: ECP combined with lensectomy appears to be a safe and successful procedure for short- to medium-term vision preservation…
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