Peer-reviewed veterinary case report
Pectinate ligament dysplasia common and progresses in Welsh springer
By Oliver, J A C et al.·Published in The Journal of small animal practice·2016·Centre for Preventive Medicine·View original on PubMed →
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Original publication title: Prevalence and progression of pectinate ligament dysplasia in the Welsh springer spaniel.
- Species:
- dog
Plain-English summary
A group of 227 Welsh springer spaniels was examined for a condition called pectinate ligament dysplasia, which affects the eye's drainage system and can lead to vision problems. About 61% of the dogs showed some level of this condition, with over a third being moderately or severely affected. The study found that older dogs were more likely to have this issue, and some dogs that initially appeared unaffected developed the condition later on. Regular eye exams are important, as the condition can progress over time, even in younger dogs.
People also search for: Welsh springer spaniel eye problems · pectinate ligament dysplasia symptoms · dog eye exam importance
Abstract
OBJECTIVES: To determine the prevalence of pectinate ligament dysplasia in a large group of Welsh springer spaniels; to investigate associations between pectinate ligament dysplasia and age, sex and intraocular pressure and between intraocular pressure and age and sex; and to investigate progression of pectinate ligament dysplasia in individual dogs. METHODS: In a prospective study, gonioscopy was performed in both eyes of 227 Welsh springer spaniels and intraocular pressure measured by rebound tonometry. Eyes were classified as "unaffected" if 0% of the iridocorneal angle was affected with pectinate ligament dysplasia (grade 0), "mildly affected" if <20% was affected (grade 1), "moderately affected" if 20 to 90% was affected (grade 2) and "severely affected" if >90% was affected (grade 3). In a retrospective study, progression of pectinate ligament dysplasia over time was investigated for 65 dogs. RESULTS: One hundred and thirty-nine of 227 dogs (61·2%) were affected by pectinate ligament dysplasia (grades 1 to 3) and 82/227 (36·2%) were moderately or severely affected. There was a significant association between pectinate ligament dysplasia and age. There were no associations between pectinate ligament dysplasia and intraocular pressure or pectinate ligament dysplasia and sex. Thirty-five of 65 dogs (53·8%) demonstrated progression of pectinate ligament dysplasia. CLINICAL SIGNIFICANCE: Prevalence of pectinate ligament dysplasia was high despite widespread screening and selection against the condition. Our data indicate that gonioscopic features of pectinate ligament dysplasia can progress in the Welsh springer spaniel. Dogs deemed unaffected at an early age may subsequently be diagnosed with pectinate ligament dysplasia.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/27251455/