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Clinical Management of Vision Impairment in Domestic and Exotic Species
Vision impairment is a significant clinical condition affecting various veterinary species, resulting from ocular, neurological, or systemic pathology. This article outlines the systematic diagnostic approach, adaptive management strategies, and long-term care considerations for animals with partial or total blindness.
Clinical summary
- Possible causes
- Etiologies include congenital anomalies (e.g., microphthalmia, retinal dysplasia), infectious diseases (e.g., FIP in felines, Moraxella bovis in bovines), metabolic disease (e.g., diabetic cataracts, hypertensive retinopathy), glaucoma, and traumatic injury.
- Diagnostic approach
- Comprehensive ophthalmic examination, including menace response, dazzle reflex, pupillary light reflex (PLR), and schirmer tear test. Advanced diagnostics include electroretinography (ERG), ocular ultrasound, and MRI to evaluate retrobulbar and intracranial pathways.
- Management
- Treatment is directed at the primary etiology. Surgical intervention (e.g., phacoemulsification for cataracts, enucleation for painful blind eyes) and medical therapy (e.g., anti-inflammatories for uveitis) are prioritized. For incurable cases, sensory adaptation is the focus of management.
References
- [1]Gelatt, K. N.. Veterinary Ophthalmology (2021)
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