Superficial keratectomy and 360º conjunctival flap for bullous keratopathy in a dog: a case report

Abstract

A case of a two-year-old male Pinscher with a history of discomfort in the right eye was reported. The left eye had been enucleated by the referring veterinarian due to the same symptom with unsuccessful clinical treatment. The Schirmer tear test value was elevated and a decreased intraocular pressure was observed by applanation tonometry. Biomicroscopy revealed profuse corneal edema and keratoconus and fluorescein staining was negative. Gonioscopy and ophthalmoscopy did not provide any relevant data due to the corneal alterations. Bullous keratopathy was diagnosed. Surgery was performed in two steps: 1) superficial keratectomy and 360º conjunctival flap, and 2) superficial keratectomy to restore corneal transparency. Thirty days after the second superficial keratectomy, the third eyelid flap was removed. Conjunctivalization of the upper nasal quadrant of the cornea was observed. The axial portion of the cornea was transparent and vision was restored.Keywords: dog, bullous keratopathy, superficial keratectomy, 360° conjunctival flap RESUMO Relata

Bullous keratopathy in a yellow-headed caracara (Milvago chimachima) treated with a modified third eyelid flap

“…However, no success was achieved and a penetrating keratoplasty with an overlying pedicle graft was performed, which allowed after a few months the resolution of the ophthalmic lesion (Gionfriddo & Powell 2006). A common sign presented by humans and domestic animals with BK is the intense eye discomfort demonstrated through blepharospasm, increased eyelid incursions or behavioral change that was not observed in this case (Pires et al 1999, Ortiz et al 2011.…”

“…The bullous keratopathy (BK) although described in dogs and cats has an unusual presentation in other animals (Ortiz et al 2011, Jégou & Tromeur 2015. In birds there is only one BK report in a Great Horned Owl (Bubo virginianus) associated with trauma, which was treated initially with a temporary tarsorrhaphy and the use of topical antibiotics and hyperosmotic.…”

“…The available surgical options include keratectomy and keratoplasty, conjunctival flaps, tarsorraphy, collagen cross-linking and the amniotic membrane transplantation (Pires et al 1999, Ortiz et al 2011, Maggs et al 2013, Zhao et al 2013, Spiess et al 2014, Pot et al 2015, Famose 2014.…”