Page 1 of 32
COMPREHENSIVE GUIDE TO ABO-NCLE
CERTIFICATION EXAMS FOR OPTICIANS AND
CONTACT LENS TECHNICIANS | FREQUENTLY
TESTED QUESTIONS WITH CORRECT
ANSWERS | BRAND NEW!
What does ABO-NCLE administer? - ✔✔✔ Correct Answer > Voluntary
competency certification examinations for dispensing Opticians
and Contact Lens Technicians.
What is the website for exam information? - ✔✔✔ Correct Answer >
www.abo-ncle.org
What is the policy on exam registration and cancellation? - ✔✔✔
Correct Answer > Only the candidate can register and/or cancel the
exam.
What happens if a candidate needs to reschedule an exam? - ✔✔✔
Correct Answer > They must contact the ABO-NCLE office and pay a
$75 fee.
,Page 2 of 32
What is the role of proctors during the exam? - ✔✔✔ Correct Answer >
Proctors are trained to follow procedures and handle emergency
situations.
What is the process for equating multiple versions of the exam? -
✔✔✔ Correct Answer > To assure that they present equal challenge to
candidates.
What is the importance of stringent computer encryption
programming? - ✔✔✔ Correct Answer > To ensure the security of the
exam materials.
What must candidates do to submit an accommodation request? -
✔✔✔ Correct Answer > Fill out the accommodation request form
available on the website.
What is the maximum number of testing centers available for the
exams? - ✔✔✔ Correct Answer > Over 300 testing centers.
What is the time frame for registering for the exams? - ✔✔✔ Correct
Answer > Monthly, in January-March, April-June, July-September,
October-December.
,Page 3 of 32
What is Prentice's Rule used for? - ✔✔✔ Correct Answer > It is used to
calculate the effect of prism in lenses.
What is vertical imbalance in lenses? - ✔✔✔ Correct Answer > It refers
to a difference in lens power that can cause unequal image
heights.
What does vertex compensation address? - ✔✔✔ Correct Answer > It
addresses changes in lens power due to the distance from the
eye.
What is centration in optics? - ✔✔✔ Correct Answer > Centration refers
to the alignment of the optical center of the lens with the visual
axis.
What are oblique meridians in lens optics? - ✔✔✔ Correct Answer >
They are the angles at which light enters the lens that are not
aligned with the principal meridians.
What is magnification in optics? - ✔✔✔ Correct Answer > Magnification
is the increase in the apparent size of an object when viewed
through a lens.
, Page 4 of 32
What is anisometropia? - ✔✔✔ Correct Answer > It is a condition where
the two eyes have significantly different refractive power.
What is aniseikonia? - ✔✔✔ Correct Answer > It is a condition where
there is a difference in the perceived size of images between the
two eyes.
What are the components of the anterior segment of the eye? -
✔✔✔ Correct Answer > The anterior segment includes the sclera,
cornea, iris, pupil, and aqueous humor.
What is glaucoma? - ✔✔✔ Correct Answer > Glaucoma is a condition
characterized by increased intraocular pressure that can
damage the optic nerve.
What is macular degeneration? - ✔✔✔ Correct Answer > Macular
degeneration is a disease that leads to loss of vision in the
center of the visual field due to damage to the retina.
What is a scotoma? - ✔✔✔ Correct Answer > A scotoma is an area of
partial or complete loss of vision surrounded by a field of normal
vision.
COMPREHENSIVE GUIDE TO ABO-NCLE
CERTIFICATION EXAMS FOR OPTICIANS AND
CONTACT LENS TECHNICIANS | FREQUENTLY
TESTED QUESTIONS WITH CORRECT
ANSWERS | BRAND NEW!
What does ABO-NCLE administer? - ✔✔✔ Correct Answer > Voluntary
competency certification examinations for dispensing Opticians
and Contact Lens Technicians.
What is the website for exam information? - ✔✔✔ Correct Answer >
www.abo-ncle.org
What is the policy on exam registration and cancellation? - ✔✔✔
Correct Answer > Only the candidate can register and/or cancel the
exam.
What happens if a candidate needs to reschedule an exam? - ✔✔✔
Correct Answer > They must contact the ABO-NCLE office and pay a
$75 fee.
,Page 2 of 32
What is the role of proctors during the exam? - ✔✔✔ Correct Answer >
Proctors are trained to follow procedures and handle emergency
situations.
What is the process for equating multiple versions of the exam? -
✔✔✔ Correct Answer > To assure that they present equal challenge to
candidates.
What is the importance of stringent computer encryption
programming? - ✔✔✔ Correct Answer > To ensure the security of the
exam materials.
What must candidates do to submit an accommodation request? -
✔✔✔ Correct Answer > Fill out the accommodation request form
available on the website.
What is the maximum number of testing centers available for the
exams? - ✔✔✔ Correct Answer > Over 300 testing centers.
What is the time frame for registering for the exams? - ✔✔✔ Correct
Answer > Monthly, in January-March, April-June, July-September,
October-December.
,Page 3 of 32
What is Prentice's Rule used for? - ✔✔✔ Correct Answer > It is used to
calculate the effect of prism in lenses.
What is vertical imbalance in lenses? - ✔✔✔ Correct Answer > It refers
to a difference in lens power that can cause unequal image
heights.
What does vertex compensation address? - ✔✔✔ Correct Answer > It
addresses changes in lens power due to the distance from the
eye.
What is centration in optics? - ✔✔✔ Correct Answer > Centration refers
to the alignment of the optical center of the lens with the visual
axis.
What are oblique meridians in lens optics? - ✔✔✔ Correct Answer >
They are the angles at which light enters the lens that are not
aligned with the principal meridians.
What is magnification in optics? - ✔✔✔ Correct Answer > Magnification
is the increase in the apparent size of an object when viewed
through a lens.
, Page 4 of 32
What is anisometropia? - ✔✔✔ Correct Answer > It is a condition where
the two eyes have significantly different refractive power.
What is aniseikonia? - ✔✔✔ Correct Answer > It is a condition where
there is a difference in the perceived size of images between the
two eyes.
What are the components of the anterior segment of the eye? -
✔✔✔ Correct Answer > The anterior segment includes the sclera,
cornea, iris, pupil, and aqueous humor.
What is glaucoma? - ✔✔✔ Correct Answer > Glaucoma is a condition
characterized by increased intraocular pressure that can
damage the optic nerve.
What is macular degeneration? - ✔✔✔ Correct Answer > Macular
degeneration is a disease that leads to loss of vision in the
center of the visual field due to damage to the retina.
What is a scotoma? - ✔✔✔ Correct Answer > A scotoma is an area of
partial or complete loss of vision surrounded by a field of normal
vision.
