@misc{indiciae67291e6d9c8d,
  title = {Visual problems in the elderly population.},
  author = {A K McCallum and C Foy},
  year = {1992},
  doi = {10.1136/bmj.305.6846.183-a},
  url = {https://pubmed.ncbi.nlm.nih.gov/1515851/},
  note = {Source identifier: 1515851}
}