TY - GEN AU - Smith,G AU - Applegate,R A AU - Howland,H C TI - The crossed-cylinder aberroscope: an alternative method of calculation of the aberrations SN - 0275-5408 PY - 1997///0122 KW - Humans KW - Least-Squares Analysis KW - Models, Theoretical KW - Optometry KW - methods N1 - Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S ER -