@misc{indiciaef798aa9fe106,
  title = {An algorithm for computing astigmatic refractive errors from ocular parameters.},
  author = {P Erickson},
  year = {1981},
  doi = {10.1097/00006324-198102000-00007},
  url = {https://pubmed.ncbi.nlm.nih.gov/7223843/},
  note = {Source identifier: 7223843}
}