Keratometry in normal cats: a cross-sectional study in Japan using an
automated handheld keratometer |
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| Authors: | Minae KAWASAKI Tomoya FURUJO Kazuo AZUMA Yoshiharu OKAMOTO Norihiko ITO |
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| Institution: | 1)The United Graduate School of Veterinary Science, Yamaguchi University, 1677-1 Yoshida, Yamaguchi 753-8511, Japan;2)Tottori University Veterinary Medical Center, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan;3)Joint Department of Veterinary Medicine, Faculty of Agriculture, Tottori University, 4-101 Koyama-cho Minami, Tottori 680-8553, Japan |
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| Abstract: | Keratometry was performed in 73 domestic cats of varied signalment in Japan using an automated handheld keratometer. The mean corneal curvature radius was significantly lower for cats younger than 1 year than for those older than 2 years (8.04 mm vs. 8.80−8.99 mm, P<0.01). The radius was significantly greater in males than in females among the cats older than 11 years (9.22 mm vs. 8.84 mm, P=0.01), while the age distributions of the males and females were similar. Corneal astigmatism did not significantly differ across the gender and age groups. The predictability of the corneal curvature and astigmatism was approximately 41−43% and less than 3%, respectively, as a function of age and bodyweight. The results highlighted some age- and sex-related keratometric variations in domestic cats in Japan. |
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| Keywords: | automated handheld keratometer cat corneal astigmatism corneal curvature keratometry |
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