@misc{indiciaec7dc0e648fa7,
  title = {Relation between spherical refractive error and visual acuity.},
  author = {G Smith},
  year = {1991},
  doi = {10.1097/00006324-199108000-00004},
  url = {https://pubmed.ncbi.nlm.nih.gov/1923335/},
  note = {Source identifier: 1923335}
}