TY  - RPRT
TI  - Estimating visual acuity by character counting using the Snellen visual acuity chart.
AU  - A H Levy
AU  - T J McCulley
AU  - B L Lam
AU  - W J Feuer
PY  - 2005
DO  - 10.1038/sj.eye.6701583
UR  - https://pubmed.ncbi.nlm.nih.gov/15184944/
ID  - 15184944
ER  -