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Alaska Blind Child Discovery

A cooperative, charitable research project to vision screen every preschool Alaskan
 

Gold Standard Exam Criteria 2003

 
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Several important, large-scale vision screening validation studies(Like VIPS and Ottar) differ with respect to what target acuities or amblyopiagenic conditions are sought. Click below to compare "True Positive" criteria for Anisometropia, Hyperopia, Astigmatism and Myopia.  
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Introduction to Validation Video
 
           
   
 
   
 
   
 
   
 
   
 
   
 
   
 
           
 
           
 
           

 

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