@misc{indiciaea8d34329596a,
  title = {Estimating visual acuity by character counting using the Snellen visual acuity chart.},
  author = {A H Levy and T J McCulley and B L Lam and W J Feuer},
  year = {2005},
  doi = {10.1038/sj.eye.6701583},
  url = {https://pubmed.ncbi.nlm.nih.gov/15184944/},
  note = {Source identifier: 15184944}
}