PMID: 11906662Mar 22, 2002Paper

Postnatal development of corneal curvature and thickness in the cat

Veterinary Ophthalmology
K L MoodieMichael G Davidson

Abstract

To evaluate the postnatal development of central corneal curvature and thickness in the domestic cat. Animals studied Six Domestic Short-haired (DSH) kittens starting at 9 weeks of age and 6 adult cats. Kittens were evaluated biweekly to monthly for a 12-month period, starting at age 9 weeks. Corneal development was monitored by hand-held keratometry and ultrasound biomicroscopy. Standard regression analysis using a nonlinear least squares method was used to generate a formula that would predict corneal curvature as a function of age. Mean keratometry (K) values for the 9-week-old cats were 54.51 (+/-1.02) diopters (D) and these values steeply declined over the next 3 months to 44.95 (+/-0.90) D. Thereafter, K-values gradually decreased to reach a plateau by 12-15 months of age of 39.90 (+/-0.42) D. Because K-values still appeared to be slightly diminishing at this point, six other > 2-year-old cats were evaluated by keratometry and were found to have K-values of 38.99 (+/-0.81). Two to four diopters of astigmatism was common in young kittens whereas adult cats had a low mean degree of astigmatism (< 1 D). A formula that predicted keratometry values in diopters (K) as a function of age in weeks (w) was established as follows: K...Continue Reading

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Citations

Sep 5, 2008·PloS One·Konrad Lehmann, Siegrid Löwel
Jan 28, 2012·American Journal of Veterinary Research·Kricket A KonradeTerry W Lehenbauer
Mar 8, 2014·Journal of Cell Communication and Signaling·Sunil K Parapuram, William Hodge
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Sep 16, 2009·Veterinary Ophthalmology·Alexandre P RibeiroJosé L Laus
Mar 19, 2003·Veterinary Ophthalmology·Fabiano Montiani-FerreiraFernando Cardoso
Aug 31, 2006·Veterinary Ophthalmology·Gwendolyn L Lynch, Julius L Brinkis
Jun 15, 2007·Veterinary Ophthalmology·Gwendolyn L LynchTiffany Blocker
Jan 28, 2015·Veterinary Ophthalmology·Lena E Herbig, J Corinna Eule
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Jun 26, 2007·Journal of Cataract and Refractive Surgery·João Marcelo LyraAntônio Bezerra
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Apr 5, 2018·BMC Veterinary Research·Ulrike MeisterMichael H Boevé
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Mar 7, 2019·Veterinary Ophthalmology·Marc VerneuilCharly Ruchon
Mar 4, 2020·The Veterinary Record·Minae KawasakiNorihiko Ito

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