TY - RPRT TI - Training visual efficiency in myopic persons. AU - J L Matson AU - W J Helsel AU - S J LaGrow PY - 1983 DO - 10.1016/0005-7967(83)90155-9 UR - https://pubmed.ncbi.nlm.nih.gov/6838468/ ID - 6838468 ER -