@misc{indiciae11711a2457b0,
  title = {A new astigmatic test chart.},
  author = {A A EASTMAN and S K GUTH},
  year = {1958},
  doi = {10.1097/00006324-195809000-00002},
  url = {https://pubmed.ncbi.nlm.nih.gov/13571372/},
  note = {Source identifier: 13571372}
}