Corneoconjunctival transposition graft saves Sphynx cat’s vision
Davies Veterinary Specialists
Ophthalmology, Veterinary Professionals
7th September 2022
A Sphynx cat with a deep corneal sequestrum – an area of devitalised cornea- has had her vision saved following a successful corneoconjunctival transposition graft at Linnaeus-owned Davies Veterinary Specialists (Davies) in Hertfordshire.
Felicity, a four-year-old Sphynx was presented to her regular vets with a history of blepharospasm and epiphora and they were deeply concerned by the appearance of Felicity’s right eye. She was subsequently referred to the Ophthalmology Service at Davies for urgent treatment.
“Felicity’s right eye had a corneal sequestrum and perilesional keratomalacia (corneal melting) which required prompt surgical stabilisation,” said Adam Margetts who is an Ophthalmology Resident at Davies. “The sequestrum extended deeply into the corneal stroma and Felicity was clearly in discomfort.”
Under general anaesthesia, the sequestrum in Felicity’s right eye and the surrounding diseased cornea was removed via lamellar keratectomy. A corneoconjunctival transposition graft was used to cover the resulting defect. This technique uses the cat’s own cornea as a donor whilst still attached to the limbal blood supply and conjunctiva. Vicryl 9-0 sutures were used to attach the graft to the surrounding cornea.
Felicity was discharged the day after surgery and has made a full recovery.
“We are delighted that Felicity has regained full and pain-free use of her right eye,” said Adam. “Her owner is aware that the formation of new ulcers and corneal sequestra remain possible in the future, but with regular check-ups we can stay a step ahead and intervene early if necessary.”
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