Characterising keratometry in different dog breeds using an automatic handheld keratometer
نویسندگان
چکیده
منابع مشابه
DOG I : An Annotation System for Images of Dog Breeds
DOGI (Dog OntoloGy Image annotator) is a complete and fully automated semantic annotation system for images of dog breeds. Annotation relies on feature extraction and on associating low-level features with image concepts in an ontology. Because general purpose ontologies for all image types are not yet available, we choose the problem of annotating images of dog breeds as a case study and for t...
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The partnership of humans and dogs goes back to over 10'000 years, yet relatively little is known about a dog's first extra-uterine nutrition particularly when it comes to milk oligosaccharides. We set out to identify and quantify milk oligosaccharides over the course of lactation from different dog breeds (Labrador retriever, Schnauzer and 3 Alaskan husky crossbreeds). To this end, 2 different...
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Milk yields were measured every 6 weeks from 21220 days after calving in either moderate or low conditioned groups of Angus, Angus x Friesian or Simford first-calf heifers for 3 successive years. Day of peak yield, peak yield and total 220 day yield were calculated by fitting 3 published equations to data on each of the breed x year x calving condition combinations. All equations ranked breed a...
متن کاملA handheld open-field infant keratometer (an american ophthalmological society thesis).
PURPOSE To design and evaluate a new infant keratometer that incorporates an unobstructed view of the infant with both eyes (open-field design). METHODS The design of the open-field infant keratometer is presented, and details of its construction are given. The design incorporates a single-ring keratoscope for measurement of corneal astigmatism over a 4-mm region of the cornea and includes a ...
متن کاملReliable keratometry with a new hand held surgical keratometer: calibration of the keratoscopic astigmatic ruler.
AIM Some surgeons consider hand held surgical keratometers unreliable. This may be due to incorrect use through not realising that the distance that the keratometer is held from the cornea influences the shape of the image. When a keratometer is held closer to the astigmatic cornea, the elliptical image will appear more circular, particularly for larger degrees of astigmatism. However, the kera...
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ژورنال
عنوان ژورنال: Veterinary Record
سال: 2020
ISSN: 0042-4900,2042-7670
DOI: 10.1136/vr.105393