@misc{indiciaef3427900a6be,
  title = {Contrast sensitivity changes in background diabetic retinopathy.},
  author = {P K Khosla and D Talwar and H K Tewari},
  year = {1991},
  url = {https://pubmed.ncbi.nlm.nih.gov/2013027/},
  note = {Source identifier: 2013027}
}