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
  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 / Small Animal Practice /     
 
Lens morphometry of the normal and cataractous canine lens
Cataracts are a common problem in aging dogs, and some breeds are thought to have a genetic predisposition. In this study, axial lens thickness, anterior chamber depth and axial globe length were evaluated in canine eyes with normal lenses and in eyes with immature, mature, congenital, posterior polar and diabetic cataract by B-mode ultrasonography.

50 normal dogs and, as a prephacoemulsification screening procedure, 100 dogs with cataract were included in the study.

Axial B-mode ultrasonograms were used to determine lens thickness, anterior chamber depth and globe diameter. Statistical comparisons between groups were made by analysis of variance and multivariate analysis, with a significance level of P< 0.05.

Axial globe lengths were not statistically significantly different between groups apart from the smaller globes in younger dogs with congenital cataract.
Axial lens thickness in diabetics (8.4 ± 0.9 mm) was statistically significantly different from the lens thickness in normal eyes (6.7 ± 1.0 mm), eyes with immature cataract (6.4 ± 0.8 mm) and eyes with mature cataract (7.4 ± 0.9 mm) although these groups, while varying in thickness, were not statistically significantly different from each other.
Anterior chamber depth was statistically significantly reduced in eyes with diabetic cataract (2.9 ± 0.1 mm) from that in normal eyes (3.8 ± 0.1 mm), eyes with immature cataract (3.5 ± 0.1 mm) and eyes with mature cataract (3.2 ± 0.6 mm) although these groups, while varying in chamber depth, were not statistically significantly different from each other.

Lenses with diabetic cataracts were significantly increased in axial thickness compared to lenses in other eyes, although lenses with mature cataracts showed a trend towards increased axial thickness and immature cataracts demonstrated a trend towards reduced thickness.
While previous studies on cataract pathobiology have suggested a reduction in lens thickness in immature cataract through lens protein loss and an increase in thickness in mature cataracts through intumescence, this study is the first to document these changes in the canine lens.


Source: Williams, David L. (2004): Lens morphometry determined by B-mode ultrasonography of the normal and cataractous canine lens. In: Veterinary Ophthalmology 7 (2), 91-95.



Tell a friend   |   Print version   |   Send this article

SMALL ANIMAL PRACTICE

Shock index in identifying acute blood loss in healthy dogs
Does the shock index (SI) increase following blood donation and is it a more sensitive assessment of acute blood loss as heart rate (HR), blood pressure, and plasma Lactate? An interesting question! 20 client-owned clinically normal dogs were enrolled in this prospective study.

  • Patient-specific facemask to facilitate brain biopsymembers
  • RET-He to diagnose iron-deficient erythropoiesis in dogsmembers
  • Hypertriglyceridemia-Associated Proteinuria in Miniature Schnauzersmembers
  • Gastrointestinal dysmotility disorders in critically ill animalsmembers
  • Disorder of sex development in a cat with chromosome mosaicism members
  • Generalized discoid lupus erythematosus in dogs members
  • Epidermolysis bullosa acquisita in dogsmembers
  • Chiari-Like Malformation and Syringomyelia in American Brussels Griffon Dogsmembers
  • Efficacy and Potential Complications of Transjugular Liver Biopsymembers
  • Hypomagnesemia in Brachycephalic Dogsmembers
  • Comparison of two minimally invasive techniques for liver biopsy members
  • Topical aqueous sirolimus and the tear production members


  • [ Home ] [ About ] [ Contact / Request ][ Disclaimer ]

    Copyright © 2001-2016 VetContact GmbH
    All rights reserved