Peer-reviewed veterinary case report
Visual sharpness tested in Poodles with different lens types
By Safatle, Angélica M V et al.·Published in Veterinary ophthalmology·2020·Department of Surgery, Brazil·View original on PubMed →
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Original publication title: Grating Visual Acuity in phakic, aphakic, and pseudophakic Poodles.
- Species:
- dog
Plain-English summary
A group of Poodles aged 4 to 14 years had their vision tested to see how well they could see patterns based on whether they had their natural lens, had it removed, or had an artificial lens implanted. The results showed that Poodles without a lens (aphakic) had significantly poorer vision compared to those with their natural lens or those with an artificial lens. The dogs with artificial lenses had vision similar to those with their natural lenses, indicating that lens replacement can effectively restore sight. This suggests that if your dog has had cataract surgery, they may regain good vision with the right treatment.
People also search for: Poodle vision problems · cataract surgery in dogs · dog eye surgery recovery
Abstract
OBJECTIVE: To compare the grating visual acuity (VA) measured by visual evoked potentials (VEP) in phakic, aphakic, and pseudophakic Poodles. ANIMALS STUDIED: Thirty-six Poodle dogs aged from 4 to 14 years. PROCEDURES: Animals were allocated into three different groups according to their lens status: phakic group (n = 12), aphakic group (n = 12), and pseudophakic group (n = 12). Grating VA was measured in cycles/degree (cpd) in all animals using the electrodiagnosis system Roland RETIportin a dark room without using any mydriatic, sedative, or anesthetic drugs. RESULTS: The mean grating VA in the phakic, aphakic, and pseudophakic groups was 5.9 ± 1.0 cpd (20/102-Snellen equivalent), 2.6 ± 0.7 cpd (20/231), and 5.2 ± 1.1 cpd (20/116), respectively. The VA from aphakic eyes was significantly lower when compared to the phakic and pseudophakic eyes (P < .05). There was no significant difference in VA between phakic and pseudophakic eyes. CONCLUSIONS: The VEP is a useful tool for the evaluation of grating visual acuity in canines. The study showed that IOL implantation following phacoemulsification results in improved VA as measured by VEP compared to that of the aphakic eye and resulted in VA that was similar to that of the normal eye.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/32820863/