TY  - GEN
AU  - Sims,C N
AU  - Durham,D G
TI  - The Jackson cross cylinder disproved
SN  - 0065-9533
PY  - 1987///0717
KW  - Astigmatism
KW  - diagnosis
KW  - Equipment and Supplies
KW  - Humans
KW  - Mathematics
KW  - Optics and Photonics
KW  - Photography
KW  - Refraction, Ocular
KW  - Video Recording
N1  - Publication Type: Journal Article
ER  -