@misc{indiciaebadb6b0f7390,
  title = {How much do we know about astigmatism?},
  author = {Theodore Grosvenor},
  year = {2007},
  doi = {10.1111/j.1444-0938.2007.00117.x},
  url = {https://pubmed.ncbi.nlm.nih.gov/17177659/},
  note = {Source identifier: 17177659}
}