We examined the refractive value in healthy Beagles by skiascopy. The mean refractive value of 54 eyes of 27 Beagles was 0.08 ± 0.87 (mean ± SD) diopters (D). The numbers of eyes defined as having emmetropia, myopia and hyperopia were 34, 8 and 12, respectively. Anisometropia was detected in 4 dogs. The mean refractive values in the 3-6-year-old and 8-9-year-old groups were 0.26 ± 0.84 and -0.29 ± 0.82 D, respectively, with a significant difference between the two groups (P<0.05).
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