TY  - RPRT
TI  - A visual acuity chart with geometric gradation and logarithmic notation.
AU  - T Y Miao
AU  - G J Wang
AU  - O Pomerantzeff
PY  - 1983
DO  - 10.1016/0002-9394(83)90075-2
UR  - https://pubmed.ncbi.nlm.nih.gov/6859194/
ID  - 6859194
ER  -