Labrador Retrievers in the Japan Guide Dog Association were examined with ophthalmic diagnostic procedures. Application of the eye examination was tested on 273. 199 dogs were under 1 year old, 61 dogs were between 1 and 3 years old and 13 dogs were over 3 years of age.
Cataracts were classified by location. In the Retrievers breed, in which posterior polar subcapsular and sutures opacities are believed to be inherited. These types of cataracts exhibited in 28 under 1 year of age, 3 between the age of 1year and 3 years,1 over 3 years of age.
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