Aqueous misdirection and ciliary block (malignant) glaucoma after cataract removal in a llama.
Ciliary block (malignant) glaucoma is caused by the posterior flow of aqueous humor into or behind the vitreous. It is a rare complication of anterior segment surgery in humans. This is a report of ciliary block glaucoma occurring as a postoperative complication of cataract surgery in a llama. Medical management was ineffective in lowering intraocular pressure (IOP). Posterior capsulotomy and anterior hyaloid disruption with a 22-gauge needle, in addition to medical management maintained IOP in the normal range until anterior vitrectomy could be performed. After vitrectomy, glaucoma resolved and medical treatment was no longer necessary.
Powell
Cynthia C
CC
Colorado State University, College of Veterinary Medicine and Biomedical Sciences, Department of Clinical Sciences, Fort Collins, 80523, USA. ceep@lamar.colostate.edu
Nuhsbaum
Tanja M
TM
Gionfriddo
Juliet R
JR
D000818:Animals; D002161:Camelids, New World; D002387:Cataract Extraction / Q000009:adverse effects / Q000662:veterinary*; D002924:Ciliary Body / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005901:Glaucoma / Q000209:etiology / Q000601:surgery / Q000662:veterinary*; D011183:Postoperative Complications / Q000662:veterinary; D014821:Vitrectomy / Q000662:veterinary