NORTH CAROLINA
STATE BOARD OF
OPTICIANS
RX INTERPRETATION EXAMINATION
REFERENCES:
Brooks,
C.W., and Borish, I.M. System for Ophthalmic Dispensing. Butterworth-Heinemann,
Boston 1979.
Fannin,
T.E., and Grosvenor, T. Clinical Optics. Butterworth-
Heinemann, Boston, 1987.
The
North Carolina State Board of Opticians RX INTERPRETATION examination
may include but will not be limited to the following topics:
- Interpretation and application
of current American National Standards Institute (ANSI) guidelines;
- determining reading and
intermediate prescriptions;
- transposition
to alternate cylinder notations and power cross;
- bifocal
selection based on distance prescription and occupational needs;
- progressive
addition lens styles;
- corrections
for vertical imbalance in the reading portion;
- oblique
meridian calculations;
- spherical
equivalent;
- focal length;
- prism based on
lens decentration;
- power
compensation for vertex changes;
- center and
edge thickness based on power and prism;
- resolving and
resulant prism;
- image size
calculations and corrections;
- lens
reflections;
- and refractive
errors including definitions, causes, amblyopia, diplopia and phorias.