Perilimbal pocket technique for surgical repositioning of prolapsed nictitans gland in dogs

in Veterinary Record : Journal of the British Veterinary Association (2012)

The objective of this prospective study was to investigate the success rate, practicality and complications of a new perilimbal pocket technique for the replacement of prolapsed nictitans gland in 30 dogs ... [more ▼]

The objective of this prospective study was to investigate the success rate, practicality and complications of a new perilimbal pocket technique for the replacement of prolapsed nictitans gland in 30 dogs (44 eyes). A first incision was made in the bulbar conjunctiva, 2-3 mm from and parallel to the infero-nasal limbus, a second incision on the bulbar aspect of the nictitating membrane (NM), 2-3 mm parallel to the free edge. The gland was returned to its normal position by suturing the subconjunctival tissues of the NM to the episcleral tissues, using four to six interrupted horizontal mattress sutures. The English bulldog, Neapolitan mastiff, great dane and American cocker spaniel were commonly presented. Nictitans gland prolapse occurred prior to one year of age in 83.3 per cent of dogs, and unilaterally in 15 patients. The procedure was easy to perform, and had a 90.9 per cent success rate, with minimal complications. The median duration of follow-up, conducted by ophthalmic examination or telephone contact with the owners, was 21.5 months. Tear production and ocular health were not affected in 17 eyes with at least six months follow-up. There was a statistically significant increase between preoperative and postoperative Schirmer tear test-1 measurements. [less ▲]

Duration of corneal anaesthesia following multiple doses and two concentrations of tetracaine hydrochloride eyedrops on the normal equine cornea

in Equine Veterinary Journal (2011), 43(1), 69-73

REASONS FOR PERFORMING STUDY: There is a clinical impression that tetracaine hydrochloride (THCl) eyedrops is a suitable topical anaesthetic in horses. OBJECTIVE: To determine the duration of corneal ... [more ▼]

REASONS FOR PERFORMING STUDY: There is a clinical impression that tetracaine hydrochloride (THCl) eyedrops is a suitable topical anaesthetic in horses. OBJECTIVE: To determine the duration of corneal anaesthesia following instillation of multiple doses and 2 concentrations of THCl in 10 healthy horses. METHODS: The corneal touch threshold (CTT) was determined, in both eyes, before (basal CTT) and after application of one drop of 0.5% THCl, 2 drops at a 1 min interval of 0.5% THCl or one drop of 1% THCl. CTT was measured in mm every 5 min until complete recovery of the basal CTT. Treatments were separated by an interval of at least one week. RESULTS: Corneal sensitivity was significantly reduced from baseline values for 30, 60 and 50 min after application of one drop of 0.5% THCl, 2 drops of 0.5% THCl and one drop of 1% THCl, respectively. Mean maximal anaesthetic effects, corresponding to a CTT of 0 mm, lasted 5.5, 16 and 15.25 min and maximal anaesthetic effect was present in 55, 90 and 80% of eyes, 5 min after application of one drop of 0.5% THCl, 2 drops of 0.5% THCl and one drop of 1% THCl, respectively. CONCLUSIONS: The application of a second drop or the use of more concentrated eyedrops significantly increases duration of both anaesthesia and maximal anaesthetic effect. POTENTIAL RELEVANCE: Duration of corneal anaesthesia following tetracaine instillation was established enabling a better use when performing diagnostic and therapeutic procedures. Comparison of tetracaine with other ocular anaesthetics needs to be published in the future. [less ▲]

Les mélanomes oculaires chez le chien et le chat

in Point Vétérinaire (2011), 317

Les tumeurs mélanocytaires sont plus fréquentes chez le chien que chez le chat. Les mélanomes et les mélanocytomes requièrent un examen approfondi afin d’établir la conduite à tenir. En règle générale ... [more ▼]

Les tumeurs mélanocytaires sont plus fréquentes chez le chien que chez le chat. Les mélanomes et les mélanocytomes requièrent un examen approfondi afin d’établir la conduite à tenir. En règle générale, dans les deux espèces, les mélanomes palpébraux présentent un bon pronostic s’ils sont excisés au plus tôt, même si des récidives sont toujours possibles. Si les mélanomes conjonctivaux semblent être agressifs dans les deux espèces, en revanche, les mélanomes épibulbaires ont tendance à être bénins et à progresser très lentement. Enfin, c’est chez le chat que le pronostic est le plus mauvais lors de mélanome intra-oculaire, à la fois pour l’œil et pour l’animal [less ▲]

Equine glaucomas

in Equine Veterinary Education (2010), 22(6), 299-305

The glaucomas are diseases that lead to the destruction of retinal ganglion cells and their axons via a number of mechanisms such as direct pressure damage, hypoxic and toxic injuries. The aim of this ... [more ▼]

The glaucomas are diseases that lead to the destruction of retinal ganglion cells and their axons via a number of mechanisms such as direct pressure damage, hypoxic and toxic injuries. The aim of this article is to present a review of this condition in horses in order to have a proactive attitude and to enable an early diagnosis to be made in order to determine the most adequate prophylactic (on predisposed individuals) and therapeutic treatment. [less ▲]

Tolerance of different concentrations of tetracaine hydrochloride eyedrops and its effect on the tear break up time in healthy horses (abstract)

in Veterinary Ophthalmology (2009), 12(1), 61-70

Duration of anaesthetic effect and effects of multiple doses and concentrations of tetracaine hydrochloride eyedrops on the normal equine cornea

Poster (2008, May)

Imaging of retrobulbar masses in dogs and cats: retrospective study of 16 cases

Poster (2007)