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Results 1 - 2 of 2 for Protanopia
  1. ClinicalTrials.gov: Color Vision Defects From the National Institutes of Health (National Institutes of Health)  
    National Institutes of Health ... Color Blindness/Clinical Trials ... Color Blindness ... From the National Institutes of Health
    https://clinicaltrials.gov/...ion+Defects"&aggFilters=status:not rec - External Health Links
  2. What Is Color Blindness? (American Academy of Ophthalmology)  
    American Academy of Ophthalmology ... Color Blindness/Start Here ... Color Blindness ... Color blindness occurs when you are unable to see colors in a normal way. It ...
    https://www.aao.org/eye-health/diseases/what-is-color-blindness - External Health Links