NCLE Exam Prep with all Correct & 100% Verified
Answers |Actual Complete Update |Guaranteed to Pass
optic zone ✔Correct Answer-the central portion of a contact lens which contains the
refractive power and generally corresponds to the central corneal cap
posterior apecal radius ✔Correct Answer-this term is generally used in reference to spin-cast
soft lenses. the curvature of the posterior surface of the lens changes with the refractive power.
the radius of curvature is measured at the apex of the posterior surface.
steeper base curve ✔Correct Answer-occurs when the posterior radius of curvature is
decreased (i.e. 8.4 to 8.1 mm)
flatter base curve ✔Correct Answer-occurs when the posterior radius of curvature is
increased (i.e.8.1 to 8.4 mm)
bicurve lens ✔Correct Answer-a contact lens which contains two curves: one base curve and
one secondary curve. it is usually small 7.5 to 8.8 mm on diameter, relatively steep and made
with narrow peripheral curves about 0.2 mm. lenses are usually intrapalpebral lenses, designed
to fit within the palpebral fissure limits.
tricurve lens ✔Correct Answer-a contact lens which contains three curves: a base curve, an
outer peripheral posterior curve (PPC), and an intermediate posterior curve (IPC). lenses are
generally larger, 9.5 mm or greater.
multicurve lens ✔Correct Answer-contains a base curve and three or more peripheral curves.
usually a larger lens.
junctional zone ✔Correct Answer-the junction of two curves
blending ✔Correct Answer-the smoothing of a junctional zone by removing the sharp line
between the zones
lens diameter or chord diameter ✔Correct Answer-the width of a lens or the measurement
from one edge of the lens to the opposite edge
curve widths ✔Correct Answer-the width of the CPC, PPC, or IPC
central thickness ✔Correct Answer-separation between the anterior and posterior surface at
the geometric center of the lens. minus lenses are thinner, plus lenses are thicker
,ballasted lens ✔Correct Answer-lens with a heavier base which becomes oriented inferiorly or
downward when the lens is worn
prism ballated lens ✔Correct Answer-a ballasted lens which utilizes a prism wedge designed
to weight the lens
truncated lens ✔Correct Answer-a lens which has been cut off, usually 0.5-1.5 mm along its
lower edge, to form a horizontal base. double ________ along the top and bottom portion of
the lens is sometimes done to help improve stabilization
back surface power ✔Correct Answer-effective power of a lens when measured from the back
surface
wetting angle ✔Correct Answer-the angle that the edge of a bead of water makes with the
surface of the plastic, the smaller the angle the greater the wetting ability
toric lenses or toroid lenses ✔Correct Answer-lenses with different radii of curvature in each
meridian which are used to correct astigmatism
principal meridians ✔Correct Answer-the meridians of shortest and longest radii which differ
by 90 degrees
front surface toric lens ✔Correct Answer-a lens in which the anterior surface has two different
radii and the posterior surface is spherical
back surface toric lens ✔Correct Answer-a lens in which the posterior surface has two
different radii and the anterior surface is spherical
bitoric lens ✔Correct Answer-a lens in which both the posterior and anterior surfaces contain
two different radii
lenticular bowl ✔Correct Answer-a lens design generally used in higher plus power which
consists of a central optic zone and a surrounding non-optic peripheral or "carrier" portion
spin-cast soft lens ✔Correct Answer-a mentioned of manufacturing soft contact lenses
whereby a liquid material is revolved in a mold at a controlled speed and temperature which
produces the desired curvature, design, and power
acuity ✔Correct Answer-clearness; visual ________ is measured by the smallest object that
can be seen at a certain distance
adnexa oculi ✔Correct Answer-accessory structures of the eye, such as the lacrimal appatatus
and the eyelids
,albinism ✔Correct Answer-heredetary loss of pigment in the eye, skin, hair, usually associated
with lowered visual acuity, nystagmus and light sensitivity
amblyopia ✔Correct Answer-loss of vision without any apparent disease of the eye
ametropia ✔Correct Answer-a refractive error in which the eye, when in a state of rest, does
not focus the image of an object upon the retina; includes hyperopia, myopia, and astigmatism.
see also refractive error
aniridia ✔Correct Answer-congenital absence of the iris
aniseikonia ✔Correct Answer-a condition in which the ocular image of an object as seen by
one eye differs so much in size or shape from that seen by the other eye that the two images
cannot be focused into a single impression
aniscoria ✔Correct Answer-inequality of the pupils in diameter
anomaly ✔Correct Answer-departure from the normal
anophthalmia ✔Correct Answer-absence of a true eyeball
anterior chamber ✔Correct Answer-space in front of the eye, bounded in front by the cornea
and behind by the iris; filled with aqueous humor
antibody ✔Correct Answer-a specific substance produced by the body in the presence of an
antigen
antigen ✔Correct Answer-any substance that acts against the action of histamine
antihistamine ✔Correct Answer-a substance that acts against the action of histamine
aphakia ✔Correct Answer-absence of the crystalline lens of the eye
aqueous humor ✔Correct Answer-clear, watery fluid that fills the anterior and posterior
chambers within the front part of the eye
arcus senilus ✔Correct Answer-grayish white ring in the periphery of the cornea
asthenopia ✔Correct Answer-eye fatigue caused by tiring of the internal and/or external
muscles
astigmatism ✔Correct Answer-a refractive error that prevents the light rays from coming to a
single focus on the retina because of different degrees of refraction in the various meridians of
the eye
, against the rule astigmatism ✔Correct Answer-condition in which the steepest corneal
meridian is in the horizontal plane. an example of keratometer readings for a patient
exhibiting_______________ would be: K's 45.00 @ 180/042.00 @ 90
lenticular astigmatism ✔Correct Answer-astigmatism that is found in the crystallilne lens
oblique astigmatism ✔Correct Answer-regular astigmatism in which the principal meridians
are other than 90 and 180
residual astigmatism ✔Correct Answer-astigmatism remaining after the corneal astigmatism
has been neutralized
with the rule astigmatism ✔Correct Answer-condition in which the steepest corneal meridian
is in the vertical plane. as example of keratometer readings for a patient exhibiting with the rule
astigmatism would be: k's 42.00 @ 180/45.00 @90
atrophy ✔Correct Answer-wasting or decreasing of a tissue due to faulty nutrition or loss of
nerve supply
hydrogel ✔Correct Answer-soft contact lenses are also known as:
silicone hydrogel ✔Correct Answer-what soft lens material provides greater oxygen
permeability without increasing the water content of the lens?
flexible wear ✔Correct Answer-extended wear lens that is worn on a daily wear basis
BVP back vertex power ✔Correct Answer-when neutralizing a lens in back vertex power,the
concave or posterior side of the lens is placed against the aperture of the lensometer.
beweding (cornea) ✔Correct Answer-an edematous condition of the epithelium of the cornea
characterized by irregular reflecting from a multitude of droplets when the cornea is viewed
with the slit lamp
biconcave lens ✔Correct Answer-lens having a concave surface on both faces.
biconvex lens ✔Correct Answer-lens having a convex surface on both faces.
binocular vision ✔Correct Answer-ability to use the two eyes simultaneously to focus on the
same interpretation of its solidity and its position in space.
blepharitis ✔Correct Answer-inflammation of the margins of the eyelids.
blepharoconjuctivitis ✔Correct Answer-inflammation of the eyelid and conjunctiva.
Answers |Actual Complete Update |Guaranteed to Pass
optic zone ✔Correct Answer-the central portion of a contact lens which contains the
refractive power and generally corresponds to the central corneal cap
posterior apecal radius ✔Correct Answer-this term is generally used in reference to spin-cast
soft lenses. the curvature of the posterior surface of the lens changes with the refractive power.
the radius of curvature is measured at the apex of the posterior surface.
steeper base curve ✔Correct Answer-occurs when the posterior radius of curvature is
decreased (i.e. 8.4 to 8.1 mm)
flatter base curve ✔Correct Answer-occurs when the posterior radius of curvature is
increased (i.e.8.1 to 8.4 mm)
bicurve lens ✔Correct Answer-a contact lens which contains two curves: one base curve and
one secondary curve. it is usually small 7.5 to 8.8 mm on diameter, relatively steep and made
with narrow peripheral curves about 0.2 mm. lenses are usually intrapalpebral lenses, designed
to fit within the palpebral fissure limits.
tricurve lens ✔Correct Answer-a contact lens which contains three curves: a base curve, an
outer peripheral posterior curve (PPC), and an intermediate posterior curve (IPC). lenses are
generally larger, 9.5 mm or greater.
multicurve lens ✔Correct Answer-contains a base curve and three or more peripheral curves.
usually a larger lens.
junctional zone ✔Correct Answer-the junction of two curves
blending ✔Correct Answer-the smoothing of a junctional zone by removing the sharp line
between the zones
lens diameter or chord diameter ✔Correct Answer-the width of a lens or the measurement
from one edge of the lens to the opposite edge
curve widths ✔Correct Answer-the width of the CPC, PPC, or IPC
central thickness ✔Correct Answer-separation between the anterior and posterior surface at
the geometric center of the lens. minus lenses are thinner, plus lenses are thicker
,ballasted lens ✔Correct Answer-lens with a heavier base which becomes oriented inferiorly or
downward when the lens is worn
prism ballated lens ✔Correct Answer-a ballasted lens which utilizes a prism wedge designed
to weight the lens
truncated lens ✔Correct Answer-a lens which has been cut off, usually 0.5-1.5 mm along its
lower edge, to form a horizontal base. double ________ along the top and bottom portion of
the lens is sometimes done to help improve stabilization
back surface power ✔Correct Answer-effective power of a lens when measured from the back
surface
wetting angle ✔Correct Answer-the angle that the edge of a bead of water makes with the
surface of the plastic, the smaller the angle the greater the wetting ability
toric lenses or toroid lenses ✔Correct Answer-lenses with different radii of curvature in each
meridian which are used to correct astigmatism
principal meridians ✔Correct Answer-the meridians of shortest and longest radii which differ
by 90 degrees
front surface toric lens ✔Correct Answer-a lens in which the anterior surface has two different
radii and the posterior surface is spherical
back surface toric lens ✔Correct Answer-a lens in which the posterior surface has two
different radii and the anterior surface is spherical
bitoric lens ✔Correct Answer-a lens in which both the posterior and anterior surfaces contain
two different radii
lenticular bowl ✔Correct Answer-a lens design generally used in higher plus power which
consists of a central optic zone and a surrounding non-optic peripheral or "carrier" portion
spin-cast soft lens ✔Correct Answer-a mentioned of manufacturing soft contact lenses
whereby a liquid material is revolved in a mold at a controlled speed and temperature which
produces the desired curvature, design, and power
acuity ✔Correct Answer-clearness; visual ________ is measured by the smallest object that
can be seen at a certain distance
adnexa oculi ✔Correct Answer-accessory structures of the eye, such as the lacrimal appatatus
and the eyelids
,albinism ✔Correct Answer-heredetary loss of pigment in the eye, skin, hair, usually associated
with lowered visual acuity, nystagmus and light sensitivity
amblyopia ✔Correct Answer-loss of vision without any apparent disease of the eye
ametropia ✔Correct Answer-a refractive error in which the eye, when in a state of rest, does
not focus the image of an object upon the retina; includes hyperopia, myopia, and astigmatism.
see also refractive error
aniridia ✔Correct Answer-congenital absence of the iris
aniseikonia ✔Correct Answer-a condition in which the ocular image of an object as seen by
one eye differs so much in size or shape from that seen by the other eye that the two images
cannot be focused into a single impression
aniscoria ✔Correct Answer-inequality of the pupils in diameter
anomaly ✔Correct Answer-departure from the normal
anophthalmia ✔Correct Answer-absence of a true eyeball
anterior chamber ✔Correct Answer-space in front of the eye, bounded in front by the cornea
and behind by the iris; filled with aqueous humor
antibody ✔Correct Answer-a specific substance produced by the body in the presence of an
antigen
antigen ✔Correct Answer-any substance that acts against the action of histamine
antihistamine ✔Correct Answer-a substance that acts against the action of histamine
aphakia ✔Correct Answer-absence of the crystalline lens of the eye
aqueous humor ✔Correct Answer-clear, watery fluid that fills the anterior and posterior
chambers within the front part of the eye
arcus senilus ✔Correct Answer-grayish white ring in the periphery of the cornea
asthenopia ✔Correct Answer-eye fatigue caused by tiring of the internal and/or external
muscles
astigmatism ✔Correct Answer-a refractive error that prevents the light rays from coming to a
single focus on the retina because of different degrees of refraction in the various meridians of
the eye
, against the rule astigmatism ✔Correct Answer-condition in which the steepest corneal
meridian is in the horizontal plane. an example of keratometer readings for a patient
exhibiting_______________ would be: K's 45.00 @ 180/042.00 @ 90
lenticular astigmatism ✔Correct Answer-astigmatism that is found in the crystallilne lens
oblique astigmatism ✔Correct Answer-regular astigmatism in which the principal meridians
are other than 90 and 180
residual astigmatism ✔Correct Answer-astigmatism remaining after the corneal astigmatism
has been neutralized
with the rule astigmatism ✔Correct Answer-condition in which the steepest corneal meridian
is in the vertical plane. as example of keratometer readings for a patient exhibiting with the rule
astigmatism would be: k's 42.00 @ 180/45.00 @90
atrophy ✔Correct Answer-wasting or decreasing of a tissue due to faulty nutrition or loss of
nerve supply
hydrogel ✔Correct Answer-soft contact lenses are also known as:
silicone hydrogel ✔Correct Answer-what soft lens material provides greater oxygen
permeability without increasing the water content of the lens?
flexible wear ✔Correct Answer-extended wear lens that is worn on a daily wear basis
BVP back vertex power ✔Correct Answer-when neutralizing a lens in back vertex power,the
concave or posterior side of the lens is placed against the aperture of the lensometer.
beweding (cornea) ✔Correct Answer-an edematous condition of the epithelium of the cornea
characterized by irregular reflecting from a multitude of droplets when the cornea is viewed
with the slit lamp
biconcave lens ✔Correct Answer-lens having a concave surface on both faces.
biconvex lens ✔Correct Answer-lens having a convex surface on both faces.
binocular vision ✔Correct Answer-ability to use the two eyes simultaneously to focus on the
same interpretation of its solidity and its position in space.
blepharitis ✔Correct Answer-inflammation of the margins of the eyelids.
blepharoconjuctivitis ✔Correct Answer-inflammation of the eyelid and conjunctiva.
