TY  - GEN
AU  - Perlman,E M
TI  - Unusual refractive errors induced by interchanging trephines during penetrating keratoplasty
SN  - 1042-962X
PY  - 1991///0523
KW  - Aged
KW  - Aged, 80 and over
KW  - Equipment Design
KW  - Humans
KW  - Keratoplasty, Penetrating
KW  - adverse effects
KW  - Male
KW  - Refractive Errors
KW  - etiology
KW  - Visual Acuity
N1  - Publication Type: Case Reports; Journal Article
ER  -