TY  - RPRT
TI  - An optical device with variable astigmatic power.
AU  - J P Foley
AU  - C Campbell
PY  - 1999
DO  - 10.1097/00006324-199909000-00025
UR  - https://pubmed.ncbi.nlm.nih.gov/10498009/
ID  - 10498009
ER  -