Peer-reviewed veterinary case report
Refractive outcomes after cataract lens implants in dogs
By Kaminsky, Mihal et al.·Published in Journal of the American Veterinary Medical Association·2024·1Eye Care for Animals·View original on PubMed →
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Original publication title: Refractive error of canine cataract patients following implantation with three types of intraocular lenses.
- Species:
- dog
Plain-English summary
A group of 43 dogs with cataracts underwent surgery to remove the cloudy lens and had new lenses implanted. They received one of three types of intraocular lenses (IOLs) and were checked for vision clarity at one week, one month, and three months after the surgery. While all three lens types showed similar results, the Fo-X lens provided the best vision correction, staying close to normal vision at all check-ups. This suggests that if your dog needs cataract surgery, the Fo-X lens might be a good option for better visual outcomes.
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Abstract
OBJECTIVE: To evaluate refractive state outcomes following phacoemulsification and implantation of 3 different intraocular lenses (IOLs). ANIMALS: A prospective, randomized, controlled study was conducted on 43 client-owned dogs undergoing phacoemulsification with IOL implantation. METHODS: Eyes were randomized to receive either an-vision Fo-X (n = 26), an-vision MD8 (18), or I-MED I-LENS (24) IOL. Refraction was measured 1 week, 1 month, and 3 months postoperatively using streak retinoscopy by 2 examiners masked to each other's results. RESULTS: Postoperative refractive outcomes were highly correlated and not significantly different between 2 examiners for all time points (r = 0.97, 0.98, and 1.00; P = .76, .94, and .98, respectively). One week postoperatively, the refractive errors (mean ± SD) for Fo-X, MD8, and I-LENS were -0.14 ± 2.02 diopters (D), 0.97 ± 2.01 D, and 0.15 ± 2.55 D, respectively. One month postoperatively, the refractive errors were 0.35 ± 2.04 D, 0.06 ± 2.41 D, and -0.82 ± 2.20 D, respectively. Three months postoperatively, the refractive errors were -0.16 ± 2.67 D, 1.60 ± 2.99 D, and 0.59 ± 1.51 D, respectively. There were no significant differences in refractive error outcomes between Fo-X, MD8, and I-LENS at 1 week, 1 month, and 3 months postoperatively (P = .16; F(df=2,66)- = 1.89). However, the Fo-X was the only IOL to yield nearly emmetropic outcomes (±0.50 D) at all 3 time points. CLINICAL RELEVANCE: The postoperative refractive states of dogs were not statistically different when comparing 3 types of IOLs at 3 postoperative time points, though the Fo-X was the only IOL to yield nearly emmetropic outcomes at all 3 time points.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/37922709/