TY  - RPRT
TI  - Tonic accommodation, accommodative hysteresis, and refractive error.
AU  - S K Fisher
AU  - K J Ciuffreda
AU  - S Levine
PY  - 1987
DO  - 10.1097/00006324-198711000-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/3425675/
ID  - 3425675
ER  -