@misc{indiciae80c365f6e8e1,
  title = {Proper method for calculating average visual acuity.},
  author = {J T Holladay},
  doi = {10.3928/1081-597x-19970701-16},
  url = {https://pubmed.ncbi.nlm.nih.gov/9268940/},
  note = {Source identifier: 9268940}
}