AMERICAN BOARD OF OPTICIANRY
EXAM/ACTUAL EXAMS 2026
1. If the frame front touches the eyebrows, what is NOT a possible
solution to the problem?
A) Increasing the retroscopic tilt
B) Choosing another frame
C) Decreasing the distance between the nose pads
D) Increasing the pantoscopic tilt - ANSWER-A) Increasing the
retroscopic tilt
2. The thickness of an AR coating is measured in:
A)Millimeters
B) Centimeters
C)Inches
D) Angstroms - ANSWER-D) Angstroms
3. What is back vertex focal length?
A) Distance between the image and the object
B) Difference between the focal length and lens power
C) Distance between a minus lens and its radius of curvature
D) Distance between a plus lens and the focal point of lens -
ANSWER-D) Distance between a plus lens and the focal point of
lens
4. What is the next step after confirming the appropriate dial setting on
the pupilometer?
A) Record the readings
B) position the pupilometer
C) Adjust the crosshair setting
D) Position the patient - ANSWER-D) Position the patient
,5. Lenses, which are classified as cosmetic, have less effect over the
cones of the eye, and the rods take over to adjust for transmission of
an illumination. What does these lenses transmit?
A) Visible light below 40%
B) Visible light above 40%
C)Only ultraviolet and infrared light
D) Mostly blue light - ANSWER-B) Visible light above 40%
6. Which of the following combinations of prism is a cancelling situation?
A) Base in and base out
B) Base out and base out
C) Base in and base down
D) Base up and base down - ANSWER-A) Base in and base out
7. When adjusting the frame, the front can be lowered by using the
following adjustment:
A) By spreading the pads further apart
B) Using more pantoscopic tilt
C) By bending the pad arms down
D) By bringing the pads closer together - ANSWER-A) By spreading
the pads further apart
8. Determine imbalance at the reading level in the following prescription
(10mm reading depth)
OD: -4.00 -2.00 X 090
OS: -1.00 -3.00 X 180
A) 4.00 diopters
B) 1.00 diopter
C) No imbalance
D) 2.00 diopters - ANSWER-C) No imbalance
9. A _____ occurs when the crystalline lens opacifies or becomes cloudy,
which prevents light from passing through. - ANSWER-Cataract
, 10. The formula which translates variables such as lenses and
decentration into prismatic effect is called: - ANSWER-Prentice's rule
11. Which of the following is not an attribute of aspheric lenses?
A) Flatter
B) Wider fields of vision
C) Thinner
D) Greater magnification - ANSWER-D) Greater magnification
12. If the adjustable pads on a metal frame are repositioned
downwards into the bridge of the frame the resulting effect on the fit
will be to:
A) Lower the front
B) Decrease the retroscopic angle
C) Raise the front
D) Increase the pantoscopic angle - ANSWER-C) Raise the front
13. The term for the refractive condition where light comes to a
focus directly on the retina is?
A) Myopia
B) Astigmatism
C) Hyperopia
D) Emmetropia - ANSWER-D) Emmetropia
14. The optical center of a +3.00 -2.00 X 180 lens is de entered 6mm
temporally from the patient's line of sight. How much prism is created
by this error?
A) 1.80 diopters base out
B) 0.60 diopters base in
C) 1.80 diopters base in
D) 0.60 diopters base out - ANSWER-A) 1.80 diopters base out
15. Which of the following is the function of cross hair setting (right)?
EXAM/ACTUAL EXAMS 2026
1. If the frame front touches the eyebrows, what is NOT a possible
solution to the problem?
A) Increasing the retroscopic tilt
B) Choosing another frame
C) Decreasing the distance between the nose pads
D) Increasing the pantoscopic tilt - ANSWER-A) Increasing the
retroscopic tilt
2. The thickness of an AR coating is measured in:
A)Millimeters
B) Centimeters
C)Inches
D) Angstroms - ANSWER-D) Angstroms
3. What is back vertex focal length?
A) Distance between the image and the object
B) Difference between the focal length and lens power
C) Distance between a minus lens and its radius of curvature
D) Distance between a plus lens and the focal point of lens -
ANSWER-D) Distance between a plus lens and the focal point of
lens
4. What is the next step after confirming the appropriate dial setting on
the pupilometer?
A) Record the readings
B) position the pupilometer
C) Adjust the crosshair setting
D) Position the patient - ANSWER-D) Position the patient
,5. Lenses, which are classified as cosmetic, have less effect over the
cones of the eye, and the rods take over to adjust for transmission of
an illumination. What does these lenses transmit?
A) Visible light below 40%
B) Visible light above 40%
C)Only ultraviolet and infrared light
D) Mostly blue light - ANSWER-B) Visible light above 40%
6. Which of the following combinations of prism is a cancelling situation?
A) Base in and base out
B) Base out and base out
C) Base in and base down
D) Base up and base down - ANSWER-A) Base in and base out
7. When adjusting the frame, the front can be lowered by using the
following adjustment:
A) By spreading the pads further apart
B) Using more pantoscopic tilt
C) By bending the pad arms down
D) By bringing the pads closer together - ANSWER-A) By spreading
the pads further apart
8. Determine imbalance at the reading level in the following prescription
(10mm reading depth)
OD: -4.00 -2.00 X 090
OS: -1.00 -3.00 X 180
A) 4.00 diopters
B) 1.00 diopter
C) No imbalance
D) 2.00 diopters - ANSWER-C) No imbalance
9. A _____ occurs when the crystalline lens opacifies or becomes cloudy,
which prevents light from passing through. - ANSWER-Cataract
, 10. The formula which translates variables such as lenses and
decentration into prismatic effect is called: - ANSWER-Prentice's rule
11. Which of the following is not an attribute of aspheric lenses?
A) Flatter
B) Wider fields of vision
C) Thinner
D) Greater magnification - ANSWER-D) Greater magnification
12. If the adjustable pads on a metal frame are repositioned
downwards into the bridge of the frame the resulting effect on the fit
will be to:
A) Lower the front
B) Decrease the retroscopic angle
C) Raise the front
D) Increase the pantoscopic angle - ANSWER-C) Raise the front
13. The term for the refractive condition where light comes to a
focus directly on the retina is?
A) Myopia
B) Astigmatism
C) Hyperopia
D) Emmetropia - ANSWER-D) Emmetropia
14. The optical center of a +3.00 -2.00 X 180 lens is de entered 6mm
temporally from the patient's line of sight. How much prism is created
by this error?
A) 1.80 diopters base out
B) 0.60 diopters base in
C) 1.80 diopters base in
D) 0.60 diopters base out - ANSWER-A) 1.80 diopters base out
15. Which of the following is the function of cross hair setting (right)?
