REFERENCES:
Brooks,
C.W. Understanding Lens Surfacing. Butterworth-Heinemann, Boston, 1992.
Brooks, C.W., and Borish, I.M. System for Ophthalmic Dispensing. Butterworth-Heinemann,
Boston, 1996.
The North Carolina
State Board of Opticians OPHTHALMIC LENSES examination may
include but will not be limited to the following topics:
·
optical and physical properties of ophthalmic crown glass,
flint, barium crown, CR-39, polycarbonate;
·
absorptive
lenses and lens coatings;
·
physical
characteristics of single vision and multifocal lenses;
·
aberrations
and ophthalmic lens design;
·
formulas
including the sagitta formula, formula relating to center and edge thickness,
back vertex power, front vertex power, and oblique powers.