TY  - RPRT
TI  - Relation between spherical refractive error and visual acuity.
AU  - G Smith
PY  - 1991
DO  - 10.1097/00006324-199108000-00004
UR  - https://pubmed.ncbi.nlm.nih.gov/1923335/
ID  - 1923335
ER  -