NCLE Practical Test with all Correct & 100% Verified
Answers |Actual Complete Update |Already Graded A+
Steep Fluorescein Pattern ✔Correct Answer-Bright green pooling center, very faint green
pooling on diameter of lens
Flat Fluorescein Pattern ✔Correct Answer-Bright green pooling on diameter of lens, very faint
green in center
Against-the-rule Astigmatism Pattern ✔Correct Answer-Bright green pooling horizontally, faint
green pooling vertically
With-the-rule Astigmatism Pattern ✔Correct Answer-Bright green pooling vertically, faint
green pooling horizontally
Prism Ballast ✔Correct Answer-Common technique to stabilize lens from rotating. Added
thickness will position lens inferiorly (bottom of cornea)
Truncation ✔Correct Answer-Cutting off .50mm to 1.50mm of bottom edge of lens to provide
stability. Reduces diameter, making a looser fit.
Double Slab-off ✔Correct Answer-Lens is thicker centrally and thinner at top and bottom of
lens. Provides comfort to wearer, but may cause some stability issues.
Aspheric Lens Design ✔Correct Answer-
Hyperflange ✔Correct Answer-Used to correct high riding minus lenses.
Myoflange ✔Correct Answer-Used to correct low riding plus lenses.
Monovision ✔Correct Answer-Corrects presbyopia in contact wearers. One eye uses distance
(dominant) and the other eye uses reading (resessive)
Segment Bifocal ✔Correct Answer-Same concept as spectacle bifocal. Must be prism ballast.
Often crescent shaped.
Toric Lenses ✔Correct Answer-Anterior (front surface), back spherical surface or posterior
(back surface), toric back curve
Front Toric Lens ✔Correct Answer-Corrects a low to moderate amount of corneal astigmatism
Back Toric Lens ✔Correct Answer-Corrects a mid to high amount of corneal astigmatism
, Bitoric Lens ✔Correct Answer-Corrects 1.50D of corneal astigmatism and high residual
astigmatism
Aphakic ✔Correct Answer-Condition of no crystalline lens
Psuedophakic ✔Correct Answer-Implant, intraocular lens
Corneal Edema ✔Correct Answer-Always causes a poor fitting lens
Spectacle Blur ✔Correct Answer-Temporary blurred vision upon switching from contact lenses
to eyeglasses
Crystalline Lens ✔Correct Answer-The main focusing mechanism of the eye
The Main Supply of Oxygen to the cornea is provided by ✔Correct Answer-Tear Film
Keratometry mires which are only clear when the wearer blinks are indicative of a ✔Correct
Answer-Steep Fit
Keratometry mires which blur immediately following blink are indicative of a ✔Correct
Answer-Flat Fit
A rigid contact lens shows a flourescein pattern inferiorly and superiorly beneath the lens. This
is indicative of which type of astigmatism ✔Correct Answer-With-the-rule
A bi-toric rigid lens will show ✔Correct Answer-Two base curves on the radiuscope, sphero-
cylindrical rx on the lensometer
The ANSI tolerance for a soft lens diameter is ✔Correct Answer-±0.25
The ANSI tolerance for a soft lens refractive power on a Rx 5.12D to 10.00D ✔Correct Answer-
±0.18
The ANSI tolerance for RGP Base Curve is ✔Correct Answer-±0.05mm
The ANSI tolerance for RGP lens diameter is ✔Correct Answer-±0.05mm
Which instrument allows simultaneous verification of lens diameter, optic zone width, and
peripheral curve ✔Correct Answer-Radiuscope
Which instrument is best to observe the blends of rigid contact lens ✔Correct Answer-Profile
Analyzer
Answers |Actual Complete Update |Already Graded A+
Steep Fluorescein Pattern ✔Correct Answer-Bright green pooling center, very faint green
pooling on diameter of lens
Flat Fluorescein Pattern ✔Correct Answer-Bright green pooling on diameter of lens, very faint
green in center
Against-the-rule Astigmatism Pattern ✔Correct Answer-Bright green pooling horizontally, faint
green pooling vertically
With-the-rule Astigmatism Pattern ✔Correct Answer-Bright green pooling vertically, faint
green pooling horizontally
Prism Ballast ✔Correct Answer-Common technique to stabilize lens from rotating. Added
thickness will position lens inferiorly (bottom of cornea)
Truncation ✔Correct Answer-Cutting off .50mm to 1.50mm of bottom edge of lens to provide
stability. Reduces diameter, making a looser fit.
Double Slab-off ✔Correct Answer-Lens is thicker centrally and thinner at top and bottom of
lens. Provides comfort to wearer, but may cause some stability issues.
Aspheric Lens Design ✔Correct Answer-
Hyperflange ✔Correct Answer-Used to correct high riding minus lenses.
Myoflange ✔Correct Answer-Used to correct low riding plus lenses.
Monovision ✔Correct Answer-Corrects presbyopia in contact wearers. One eye uses distance
(dominant) and the other eye uses reading (resessive)
Segment Bifocal ✔Correct Answer-Same concept as spectacle bifocal. Must be prism ballast.
Often crescent shaped.
Toric Lenses ✔Correct Answer-Anterior (front surface), back spherical surface or posterior
(back surface), toric back curve
Front Toric Lens ✔Correct Answer-Corrects a low to moderate amount of corneal astigmatism
Back Toric Lens ✔Correct Answer-Corrects a mid to high amount of corneal astigmatism
, Bitoric Lens ✔Correct Answer-Corrects 1.50D of corneal astigmatism and high residual
astigmatism
Aphakic ✔Correct Answer-Condition of no crystalline lens
Psuedophakic ✔Correct Answer-Implant, intraocular lens
Corneal Edema ✔Correct Answer-Always causes a poor fitting lens
Spectacle Blur ✔Correct Answer-Temporary blurred vision upon switching from contact lenses
to eyeglasses
Crystalline Lens ✔Correct Answer-The main focusing mechanism of the eye
The Main Supply of Oxygen to the cornea is provided by ✔Correct Answer-Tear Film
Keratometry mires which are only clear when the wearer blinks are indicative of a ✔Correct
Answer-Steep Fit
Keratometry mires which blur immediately following blink are indicative of a ✔Correct
Answer-Flat Fit
A rigid contact lens shows a flourescein pattern inferiorly and superiorly beneath the lens. This
is indicative of which type of astigmatism ✔Correct Answer-With-the-rule
A bi-toric rigid lens will show ✔Correct Answer-Two base curves on the radiuscope, sphero-
cylindrical rx on the lensometer
The ANSI tolerance for a soft lens diameter is ✔Correct Answer-±0.25
The ANSI tolerance for a soft lens refractive power on a Rx 5.12D to 10.00D ✔Correct Answer-
±0.18
The ANSI tolerance for RGP Base Curve is ✔Correct Answer-±0.05mm
The ANSI tolerance for RGP lens diameter is ✔Correct Answer-±0.05mm
Which instrument allows simultaneous verification of lens diameter, optic zone width, and
peripheral curve ✔Correct Answer-Radiuscope
Which instrument is best to observe the blends of rigid contact lens ✔Correct Answer-Profile
Analyzer
