ABO NCLE EXAM QUESTIONS AND ANSWERS (VERIFIED ANSWERS
A GRADE) LATEST UPDATE 2025/2026
The wavelength of the infrared waves in the electromagnetic spectrum are:
A.) longer than visible red light waves
B.) shorter than the visible red waves
C.) 550 nanometers
D.) between 380 and 780 - CORRECT ANSWER - A
a lens that has two curves on the front surface is a
A.)myopic lens
B.)torc lens
C.)spherical lens
D.)plus cylinder lens - CORRECT ANSWER - D
A lens reads +2.25 in the vertometer. If the ocular curve is -6.00, what is the
anterior curve?
A. +2.25
B. +6.25
C. +8.25
D. +10.25 - CORRECT ANSWER - C
,the patient interpupillary distance is 68 and the frame GCD is 76. what is the
required decentration for each eye
A.)8
B.)6
C.)4
D.)2 - CORRECT ANSWER - C
a glass blowers lens is commonly a
A.)Didymiun lens
B.)Kalichrome lens
C.)Hazemaster lens
D.)Therminon lens - CORRECT ANSWER - A
the point on a lens where the prism attach either base to base or apex to apex is the
location of
A.)the geometrical center
B.)the mechanical center
C.)the center of curvature
D.)the optical center - CORRECT ANSWER - D
Abbe Value is an indication of the lenses
,A.)dioptric power
B.)surface curvature
C.)thickness
D.)dispersion - CORRECT ANSWER - D
Hyperopic corrective lenses for presbyopic patients will produce what prismatic
effect in the reading area?
A. Base up
B. Base out
C. Base down
D. Base in - CORRECT ANSWER - A
keratitis is an inflammation of what
A.)conjectiva
B.)cornea
C.)sclera
D.)retina - CORRECT ANSWER - B
a plastic photochromic lens is helpful in what two areas due to uniform tint
A.)bifocals and high plus lenses
B.)plano and low plus lenses
, C.)fused bifocals and low plus lenses
D.)fused trifocals and low plus lenses - CORRECT ANSWER - A
which of the following frame materials is used most often in sports frames due to
its resistance to breakage
A.)optyl
B.)propionate
C.)acetate
D.)polycarbonate - CORRECT ANSWER - D
of the following frame materials which one exhibits the best shape memory when
heated
A.)carbon
B.)optyl
C.)nylon
D.)aluminium - CORRECT ANSWER - B
Upon final inspection of your patient's glasses, you determine the OCD does not
equal the PPD. Now you must determine the induced prism.
OD: +1.00 sph, OS: +2.50 sph
PD ordered= 62mm, PD received= 66mm
A. OD=0.20d of prism base out & OS=0.50d of prism base out.
B. OD=0.20d of prism base in & OS=0.50d of prism base in.
A GRADE) LATEST UPDATE 2025/2026
The wavelength of the infrared waves in the electromagnetic spectrum are:
A.) longer than visible red light waves
B.) shorter than the visible red waves
C.) 550 nanometers
D.) between 380 and 780 - CORRECT ANSWER - A
a lens that has two curves on the front surface is a
A.)myopic lens
B.)torc lens
C.)spherical lens
D.)plus cylinder lens - CORRECT ANSWER - D
A lens reads +2.25 in the vertometer. If the ocular curve is -6.00, what is the
anterior curve?
A. +2.25
B. +6.25
C. +8.25
D. +10.25 - CORRECT ANSWER - C
,the patient interpupillary distance is 68 and the frame GCD is 76. what is the
required decentration for each eye
A.)8
B.)6
C.)4
D.)2 - CORRECT ANSWER - C
a glass blowers lens is commonly a
A.)Didymiun lens
B.)Kalichrome lens
C.)Hazemaster lens
D.)Therminon lens - CORRECT ANSWER - A
the point on a lens where the prism attach either base to base or apex to apex is the
location of
A.)the geometrical center
B.)the mechanical center
C.)the center of curvature
D.)the optical center - CORRECT ANSWER - D
Abbe Value is an indication of the lenses
,A.)dioptric power
B.)surface curvature
C.)thickness
D.)dispersion - CORRECT ANSWER - D
Hyperopic corrective lenses for presbyopic patients will produce what prismatic
effect in the reading area?
A. Base up
B. Base out
C. Base down
D. Base in - CORRECT ANSWER - A
keratitis is an inflammation of what
A.)conjectiva
B.)cornea
C.)sclera
D.)retina - CORRECT ANSWER - B
a plastic photochromic lens is helpful in what two areas due to uniform tint
A.)bifocals and high plus lenses
B.)plano and low plus lenses
, C.)fused bifocals and low plus lenses
D.)fused trifocals and low plus lenses - CORRECT ANSWER - A
which of the following frame materials is used most often in sports frames due to
its resistance to breakage
A.)optyl
B.)propionate
C.)acetate
D.)polycarbonate - CORRECT ANSWER - D
of the following frame materials which one exhibits the best shape memory when
heated
A.)carbon
B.)optyl
C.)nylon
D.)aluminium - CORRECT ANSWER - B
Upon final inspection of your patient's glasses, you determine the OCD does not
equal the PPD. Now you must determine the induced prism.
OD: +1.00 sph, OS: +2.50 sph
PD ordered= 62mm, PD received= 66mm
A. OD=0.20d of prism base out & OS=0.50d of prism base out.
B. OD=0.20d of prism base in & OS=0.50d of prism base in.
