ArticleVeterinary ophthalmology2026
Outcomes of Ahmed Glaucoma Valve Placement in Client-Owned Rabbits With Refractory Glaucoma.
Article in Veterinary ophthalmology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Abstract
objectiveTo evaluate the outcome and describe complications associated with use of Ahmed valve gonioimplants in the treatment of glaucoma in rabbits. ANIMALS: Six client-owned rabbits with glaucoma. PROCEDURES: Medical records of rabbits that underwent Ahmed valve gonioimplantation between 2022 and 2025 were reviewed. All eyes received intracameral tissue plasminogen activator immediately postoperatively.
resultsGonioimplantation was performed in eight eyes. The Holland Lop breed was overrepresented. Median age was 5 years and median pre-operative IOP was 32 mmHg (26-43 mmHg). 6/8 eyes were suspected to have primary glaucoma. Three eyes had developed presumed secondary glaucoma after phacoemulsification. Clinical signs at presentation included slow and incomplete pupillary light reflex (one eye), blepharospasm (three eyes), conjunctival hyperemia (one eye), periocular swelling (two eyes), corneal edema (one eye), ulcerative keratitis (two eyes), retinal vascular attenuation (one eye), and optic nerve cupping (five eyes). Three rabbits died of unrelated causes at 6, 10 and 22 months post-operatively. After gonioimplantation, median IOP was 17 mmHg (10-25 mmHg). Vision was retained in all eyes for a mean period of 11.6 months (2-22 months). Mean antiglaucoma medication use decreased from 1.75 to 1.38 post-operatively. Mean administration frequency reduced from 4 to 3.37 times daily. Post-operative complications included shallow anterior chamber (two eyes), Haab's striae (one eye), iridal and periocular hemorrhage (one eye). One rabbit experienced hypokalemia related to topical therapy.
conclusionsIn rabbits with medically refractory glaucoma, gonioimplantation is effective in IOP control and maintaining vision in sighted rabbit eyes.
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