TY  - BOOK
AU  - Lehmann,O.J
TI  - Clinical optics and refraction
SN  - 0750621885
U1  - 617.7 
PY  - 1998///
CY  - Oxford, Boston
PB  - Butterworth-Heinemann
KW  - Eye
KW  - Physiological optics
KW  - Optics and Photonics
KW  - Refraction, Ocular
KW  - Refractive Errors
KW  - Aphakia
ER  -