Peer-reviewed veterinary case report
Color pupil light test helps diagnose retinal and optic disease
By Terakado, Kunihiko et al.·Published in The Journal of veterinary medical science·2013·Department of Veterinary Surgery, Japan·View original on PubMed →
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Original publication title: Efficacy of the use of a colorimetric pupil light reflex device in the diagnosis of fundus disease or optic pathway disease in dogs.
- Species:
- dog
Plain-English summary
A group of dogs with sudden vision loss was evaluated using a special light device to check their pupil response. The device was able to detect problems in the eyes of dogs with sudden acquired retinal degeneration syndrome (SARDS) and other eye diseases more effectively than traditional white light. Dogs with SARDS showed constricted pupils, while those with optic pathway disease had dilated pupils. This colorimetric pupil light reflex device could help veterinarians decide if further tests like electroretinography or MRI are needed for dogs experiencing sudden blindness.
People also search for: dog sudden vision loss · SARDS in dogs · eye exam for dogs · dog blindness treatment · colorimetric pupil light reflex device for dogs
Abstract
The aim of this study was to determine the efficacy of a colorimetric pupil light reflex (PLR) device (Melan-100(®), U.S.A.) in dogs with sudden acquired retinal degeneration syndrome (SARDS; 16 cases), progressive retinal atrophy (PRA; 10 cases) and optic pathway disease (6 cases). The colorimetric device detected PLR abnormality in 32, 16 and 9 eyes with SARDS, PRA and optic pathway disease, respectively, whereas white light detected PLR abnormality in 18, 11 and 9 eyes with SARDS, PRA and optic pathway disease, respectively. SARDS dogs displayed miosis, while optic pathway disease dogs displayed mydriasis in a blue light examination. Thus, colorimetric PLR may be a useful method for determining whether electroretinography (ERG) or magnetic resonance imaging (MRI) should be performed for dogs with acute blindness.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/23774038/