@misc{indiciae27eccd406598,
  title = {A new dark adaptometer.},
  author = {D B Henson and M J Allen},
  year = {1977},
  doi = {10.1097/00006324-197709000-00010},
  url = {https://pubmed.ncbi.nlm.nih.gov/596416/},
  note = {Source identifier: 596416}
}