Home
http://www.virbac.fr/ http://www.boehringer-ingelheim.com/ http://www.novartis.com/ http://www.animalhealth.bayerhealthcare.com/
vetcontact
Vetrinär
Tiermedizin
  WELCOME  
vetcontact
Vetrinär
Tiermedizin
  Privacy Policy  
  Home  
  Login / Newsletter  
vetcontact
Vetrinär
Tiermedizin
  CONTACTS  
vetcontact
Vetrinär
Tiermedizin
  Classifieds  
  New Products  
  VetCompanies  
  VetSchools  
vetcontact
Vetrinär
Tiermedizin
  PROFESSION  
vetcontact
Vetrinär
Tiermedizin
  Edutainment  
  VetAgenda  
  Presentations  
  Posters  
  ESAVS  
  Specialisation  
vetcontact
Vetrinär
Tiermedizin
  INSIGHT  
vetcontact
Vetrinär
Tiermedizin
  Congress News  
  Picture Galleries  
vetcontact
Vetrinär
Tiermedizin
  PRODUCTS  
vetcontact
Vetrinär
Tiermedizin
  Bayer  
  Boehringer Ing.  
  Novartis  
  Virbac

 
  Simply book for less...  
    

Bovine    Equine    Small Animal Practice    Swine Practice    Articles    Vetjournal    
deutsch english español polski francais
Home / WELCOME / Archiv / Equine /     
 
Retinoscopic findings in 333 horses and ponies in the UK
Ophthalmic examination in the horse is generally limited to crude assessment of vision and screening for ocular lesions. The refractive state of equine eyes and the potential impact on vision and performance requires further investigation. The aim of this study was to assess the refractive state of a large, mixed-breed sample of horses and ponies in the United Kingdom (UK).







The refractive state of both eyes of 333 horses and ponies was determined by streak retinoscopy, and the effect of age, height, gender, breed and management regime on the refractive state assessed.

Emmetropia was found in 557 of 666 (83.63%) of eyes; 228/333 (68.5%) of the horses/ponies were emmetropic in both eyes.

Refractive errors of greater than 1.50 D (in either direction) were found in 2.7% of the eyes tested. Ametropic eyes included hyperopia (54%) and myopia (46%).

Anisometropia was found in 30.3% of horses and ponies. Breed of horse/pony was the only factor that affected refractive state (in the left eye only, P < 0.05) with Thoroughbred crosses having a tendency toward myopia and Warmbloods/Shires toward hyperopia.

The retinoscopic survey found emmetropia to be the predominant refractive state of the equine eye with no evidence of an overall trend toward myopia or hyperopia.

However, individual and breed-related differences were found.

Such factors should be considered in the selection of horses for sport and leisure, and when evaluating their performance potential.

More comprehensive visual testing would be valuable in identifying underlying causes of behavioral problems.



Source: Bracun, A., Ellis, A. D. and Hall, C. (2014), A retinoscopic survey of 333 horses and ponies in the UK. Veterinary Ophthalmology. doi: 10.1111/vop.12158


Tell a friend   |   Print version   |   Send this article

EQUINE

Limbal squamous cell carcinoma in a Rocky Mountain Horse and geneticsmembers
One privately owned Rocky Mountain Horse and 84 Rocky Mountain Horses screened for allelic frequency were enrolled in this study. The objective: To document a case of limbal squamous cell carcinoma (SCC) in a Rocky Mountain Horse stallion determined to be homozygous for the genetic risk factor (DDB2 c.1013C>T) strongly associated with the disease in Haflinger and Belgian horses, and to determine the frequency of this allele in a larger population of Rocky Mountain Horses.

  • Subconjunctival bupivacaine, lidocaine, and mepivacaine and the corneal sensitivity in horsesmembers
  • Clodronate in horses with lamenessmembers
  • Valacyclovir in horses with equine multinodular pulmonary fibrosismembers
  • Radiculopathy associated with forelimb lameness in horsesmembers
  • Biological variations of routine blood parameters in horsesmembers
  • Prognosis for horses with deep digital flexor tendon injury after penetrating woundmembers
  • Possible maternal effect for the pace trait of horsesmembers
  • Flecainide on induced atrial fibrillation in horsesmembers
  • Sonographic technique to identify manica flexoria tears in horsesmembers
  • Novel prototype dynamic laryngoplasty system on arytenoid abductionmembers
  • Lipid peroxidation biomarkers in equine neuroaxonal dystrophymembers
  • Eosinophils of the horse: an updatemembers


  • [ Home ] [ About ] [ Contact / Request ] [ Privacy Policy ]

    Copyright © 2001-2018 VetContact GmbH
    All rights reserved