@misc{indiciaef3fa8843c284,
  title = {Numerical confusion errors in ishihara testing: findings from a population-based study.},
  author = {Michael Cosstick and Dana Robaei and Kathryn Rose and Elena Rochtchina and Paul Mitchell},
  year = {2005},
  doi = {10.1016/j.ajo.2005.01.002},
  url = {https://pubmed.ncbi.nlm.nih.gov/16038669/},
  note = {Source identifier: 16038669}
}