@misc{indiciaec4219fe35303,
  title = {Visual acuity.},
  author = {M J HIRSCH},
  year = {1957},
  doi = {10.1097/00006324-195704000-00005},
  url = {https://pubmed.ncbi.nlm.nih.gov/13411171/},
  note = {Source identifier: 13411171}
}