NCLE Practice Exam LATEST 2024 FINAL EXAM
PREP EXAM TOP PREDICTION (COMPLIED
FROM REAL EXAM)
The advantages aphakia have over spectacle lenses
Less peripheral aberration
Less magnification
Increase visual field
not having a lens inside your eye
Aphakia
Which of the following can aphakia cause, myopia or hypermetropia?
Hypermetropia
Causes of aphakia
*Congenital absence of lens
*Surgical Aphakia
*Absorption of lens matter
*Traumatic extrusion (push or forced out)
*Posterior dislocation- in vitreous, causes optical aphakia
,The cornea thins and bulges outward into a cone shape
Keratoconus
Symptoms of Keratoconus
*distorted, blurred, double vision
*inability to see dim light
*sensitivity to light
Signs of keratoconus
CORNEAL THINNING AT THE APEX
CHANGES OF ASTIGMATISM
DECREASING VISION IN ONE EYE
cause of keratoconus
Cause is unknown, but it is believed to be present at birth or the loss of collagen in the cornea
How can be keratoconus be treated?
,*Surgical treatment
*Vision correction
*specialty contact
*Corneal cross link
Slows down and stop the progression of keratoconus but doesn't improve vision
Cornea Cross Linking
A conical shaped cornea can best be fit with contact lenses through the use of:
A.trial lenses
B. keratometer readings
C. eye impressions
D. topogometer readings
A. Trial lenses
Prism ballast lenses can be useful for:
For cylindrical lenses and some bifocals
Helping to reduce lens rotation
, What type of contacts needs prism ballast?
Front surface toric GP and bifocal/multifocal GP
What type of contacts does not need prism ballast
Back surface toric, Bitoric, and Spherical lenses
Base down prism from 0.75-1.5 diopters weighs the lens down and keeps it stable so it doesn't
rotate
Prism ballast
Bitoric lenses are prescribed:
A. Only when there is a small amount of corneal
B. Astigmatism and no residual when there 1s no corneal
C. Astigmatism only for bifocal contact lenses
D. When there is at least 2.00D of corneal astigmatism accompanied by a significant amount of
residual astigmatism
D. When there is at least 2.00D of corneal astigmatism accompanied by a significant amount of
residual astigmatism
In which of the following cases would a front toric lens most likely be prescribed?
A. K: 41.00@180/41.25@090
PREP EXAM TOP PREDICTION (COMPLIED
FROM REAL EXAM)
The advantages aphakia have over spectacle lenses
Less peripheral aberration
Less magnification
Increase visual field
not having a lens inside your eye
Aphakia
Which of the following can aphakia cause, myopia or hypermetropia?
Hypermetropia
Causes of aphakia
*Congenital absence of lens
*Surgical Aphakia
*Absorption of lens matter
*Traumatic extrusion (push or forced out)
*Posterior dislocation- in vitreous, causes optical aphakia
,The cornea thins and bulges outward into a cone shape
Keratoconus
Symptoms of Keratoconus
*distorted, blurred, double vision
*inability to see dim light
*sensitivity to light
Signs of keratoconus
CORNEAL THINNING AT THE APEX
CHANGES OF ASTIGMATISM
DECREASING VISION IN ONE EYE
cause of keratoconus
Cause is unknown, but it is believed to be present at birth or the loss of collagen in the cornea
How can be keratoconus be treated?
,*Surgical treatment
*Vision correction
*specialty contact
*Corneal cross link
Slows down and stop the progression of keratoconus but doesn't improve vision
Cornea Cross Linking
A conical shaped cornea can best be fit with contact lenses through the use of:
A.trial lenses
B. keratometer readings
C. eye impressions
D. topogometer readings
A. Trial lenses
Prism ballast lenses can be useful for:
For cylindrical lenses and some bifocals
Helping to reduce lens rotation
, What type of contacts needs prism ballast?
Front surface toric GP and bifocal/multifocal GP
What type of contacts does not need prism ballast
Back surface toric, Bitoric, and Spherical lenses
Base down prism from 0.75-1.5 diopters weighs the lens down and keeps it stable so it doesn't
rotate
Prism ballast
Bitoric lenses are prescribed:
A. Only when there is a small amount of corneal
B. Astigmatism and no residual when there 1s no corneal
C. Astigmatism only for bifocal contact lenses
D. When there is at least 2.00D of corneal astigmatism accompanied by a significant amount of
residual astigmatism
D. When there is at least 2.00D of corneal astigmatism accompanied by a significant amount of
residual astigmatism
In which of the following cases would a front toric lens most likely be prescribed?
A. K: 41.00@180/41.25@090
