ABO-NCLE ACTUAL EXAM NEWEST VERSION 2025
Study Guide Questions and Verified Answers |
100% Correct.
Which statement is true regarding the properties of light? ✔✔CORRECT
ANSWERS✔✔Light behaves in two different ways: like a particle and like
a wave.
Use Prentice's Rule to find the power of a lens that is ground with 2
prism diopters 2 mm from the optical center. ✔✔CORRECT
ANSWERS✔✔10 diopters
The visible spectrum is: ✔✔CORRECT ANSWERS✔✔Between 380 and
760 nm.
How does light bend when it enters a medium denser (a higher
refractive index) than where it came from? ✔✔CORRECT
ANSWERS✔✔towards the normal
The low Abbe value of polycarbonate indicates: ✔✔CORRECT
ANSWERS✔✔High dispersion of light.
,High-index lenses can help make a lens thinner by: ✔✔CORRECT
ANSWERS✔✔Causing the light to bend more.
Single vision lens ✔✔CORRECT ANSWERS✔✔lens with the same power
throughout the lens
Spherocylinder lens ✔✔CORRECT ANSWERS✔✔lenses with a sphere
(to correct nearsightedness or farsightnedness) and a cylinder (to
correct astigmatism)
multifocal lenses ✔✔CORRECT ANSWERS✔✔lenses in which the lowwr
portion of the lens has an add that makes it more magnified in power
than the rest of the lens. A bifocal has two powers and a trifocal has
three
chromatic aberration ✔✔CORRECT ANSWERS✔✔when the lens does
not focus all the wavelengths of color to one point
distortion ✔✔CORRECT ANSWERS✔✔when the different points in the
periphery of a lens have different amounts of magnification
spherical aberration ✔✔CORRECT ANSWERS✔✔occurs when parallel
light rays move along the optical axis
, coma ✔✔CORRECT ANSWERS✔✔the typr of lens aberration called
coma occurs when parallel light rays going through a lens focus in a ring
shaped pattern with a V shaped or comet like flare on one end of the
image
curvature of field ✔✔CORRECT ANSWERS✔✔occurs when the things a
person sees through the edge of a lens dont focus on the retina at the
same time as the objects the person sees through the center of the lens
Oblique or marginal astigmatism ✔✔CORRECT ANSWERS✔✔Occurs
when rays of light pass through a lens at a slant
aspheric lens ✔✔CORRECT ANSWERS✔✔Minimizes spherical
aberrations
vogels formula ✔✔CORRECT ANSWERS✔✔The optimal base curve for a
lens
lenticular lenses ✔✔CORRECT ANSWERS✔✔Have lesser or no power in
the carrier portion of the lens
diopter ✔✔CORRECT ANSWERS✔✔Unit of power of a lens.
Study Guide Questions and Verified Answers |
100% Correct.
Which statement is true regarding the properties of light? ✔✔CORRECT
ANSWERS✔✔Light behaves in two different ways: like a particle and like
a wave.
Use Prentice's Rule to find the power of a lens that is ground with 2
prism diopters 2 mm from the optical center. ✔✔CORRECT
ANSWERS✔✔10 diopters
The visible spectrum is: ✔✔CORRECT ANSWERS✔✔Between 380 and
760 nm.
How does light bend when it enters a medium denser (a higher
refractive index) than where it came from? ✔✔CORRECT
ANSWERS✔✔towards the normal
The low Abbe value of polycarbonate indicates: ✔✔CORRECT
ANSWERS✔✔High dispersion of light.
,High-index lenses can help make a lens thinner by: ✔✔CORRECT
ANSWERS✔✔Causing the light to bend more.
Single vision lens ✔✔CORRECT ANSWERS✔✔lens with the same power
throughout the lens
Spherocylinder lens ✔✔CORRECT ANSWERS✔✔lenses with a sphere
(to correct nearsightedness or farsightnedness) and a cylinder (to
correct astigmatism)
multifocal lenses ✔✔CORRECT ANSWERS✔✔lenses in which the lowwr
portion of the lens has an add that makes it more magnified in power
than the rest of the lens. A bifocal has two powers and a trifocal has
three
chromatic aberration ✔✔CORRECT ANSWERS✔✔when the lens does
not focus all the wavelengths of color to one point
distortion ✔✔CORRECT ANSWERS✔✔when the different points in the
periphery of a lens have different amounts of magnification
spherical aberration ✔✔CORRECT ANSWERS✔✔occurs when parallel
light rays move along the optical axis
, coma ✔✔CORRECT ANSWERS✔✔the typr of lens aberration called
coma occurs when parallel light rays going through a lens focus in a ring
shaped pattern with a V shaped or comet like flare on one end of the
image
curvature of field ✔✔CORRECT ANSWERS✔✔occurs when the things a
person sees through the edge of a lens dont focus on the retina at the
same time as the objects the person sees through the center of the lens
Oblique or marginal astigmatism ✔✔CORRECT ANSWERS✔✔Occurs
when rays of light pass through a lens at a slant
aspheric lens ✔✔CORRECT ANSWERS✔✔Minimizes spherical
aberrations
vogels formula ✔✔CORRECT ANSWERS✔✔The optimal base curve for a
lens
lenticular lenses ✔✔CORRECT ANSWERS✔✔Have lesser or no power in
the carrier portion of the lens
diopter ✔✔CORRECT ANSWERS✔✔Unit of power of a lens.
