2025 ABO ADVANCE TEST BANK EXAM QUESTIONS WITH
ANSWERS 2025/2026 GRADED A +
Approximately what percentage of humans have some alteration in lens transparency
after age 65?
A. 25%
B. 50%
C. 60%
D. 75% - 60%
IOP within an eyeball occurring as a result of the constant formation and drainage of
aqueous humor; measured with a tonometer that has an average reading of what is
considered of concerns?
A. Pressure above 10mm or 15mm hg
B. Pressure above 15nn or 18mm hg
C. Pressure above 18mm or 20 hg
D. Pressure above 20mm or 25 mm hg - D. Pressure above 20mm or 25mm hg
Graves disease can be a result of which of the following?
A. Hypothyroidism
B. Hyperthyroidism
C. Esothyoidism
D. Exothyoidism - B. Hyperthyroidism
symptom of Grave's disease can include which of the following?
A. Exopthalmos
B. Endothalmos
C. Hyperthalmos
D. Hypothalamus - A exophthalmos
What is an ocular condition that is a chronic auto immune disorder with multi-system
abnormalities that is characterized by mononuclear infiltration of the lacrimal and
salivary glands called?
A. Diabetic retinopathy
B. Marfan syndrome
C. Sjögren's syndrome
D. Rheumatoid arthritis - C. Sjögren's syndrome
as a rule of thumb differences In Magnification over____ from eye to eye are usually
problematic to the wearer
A. 1%
B. 4%
C. 8%
D. 12% - B. 4%
Centers ground wide in plus lenses will result in what kind of prism? - Base out prism
,Centers ground wide in minus lenses will result in what kind of prism? - Base in prism
A plus lens moved downward from the primary position results in? - base down prism
effect
If a pair of lenses are ground with 2 diopters of base down prism in each lens the patient
will experience?
A. 4 diopters of prism
B. 2 diopters of prism
C. No prism
D. None of above - C no prism
The major cause of vertical imbalance is?
A. Emetropia
B. Anisonetroptia
C. Aniseikonia
D. Presbyopia - B. Anisometropia
A prism will bend light toward its?
A. Optical center
B. Apex
C. Abbe meridian
D. Base - D. Base
A prism will displace the object being viewed toward its?
A. Optical center
B. Apex
C. Abbe meridian
D. Base - B. Apex
Sagittal Value refers to the thickness of a minus lens with?
A. Power above 6 diopters
B. A zero center thickness
C. A zero edge thickness
D. A 1.5 nm center - B
A Sagittal value refers to the thickness of a plus lens with?
A. Power above 6 diopters
B. A zero center thickness
C. A zero edge thickness
D. A 1.5 nm center - C. A zero edge thickness
The Sagittal lens formula:
A. Does not apply to lenses with spherical curves
B. Only applies to lenses with spherical curves
, C. Only applies to lenses with aspheric curves
D. All of above - B. Only applies to lenses with spherical curves
In a cylinder lens if the strongest meridian does not run exactly through the E.D.
Meridian the lens computation will:
A. Error on the advantageous side (predict lens to be slightly thicker than actual)
B. Be if no value what so ever
C. Error on the disadvantageous side(predict lens to be slightly thinner than actual)
D. Predict the thickness exactly. - A. Error on the advantageous side (predict lens to be
slightly thicker than actual)
In a plus lens with aspheric design the surface curvature:
A. Steepens
B. Remains the same over entire surface
C. Flattens from center to edge
D. Is always biconvex - C. Flattens from center to edge
Which of the following is a new type of aspheric lens design?
A. Progressive
B. Geometric
C. Optical
D. Bitoric - D. Bitoric
The corrected curve theory is a method of maximizing optics when using:
A. Spherical curves
B. Isobars
C. Vectors
D. Periscopic curves - A. Spherical curves
On a normal frame with 10 to 12° of pantoscopic tilt the optical center should be located
about:
A. On center pupil
B. 5mm above pupil
C. 5mm below pupil
D. 2mm higher than pupil height - C. 5 mm below pupil
Which of the following prescriptions would be reduced in thickness the most using
aspheric design?
A. High plus
B. Low plus
C. High minus
D. Low minus - A. High plus
An uncut lens must be at least ______ mm in diameter to allow the cutting of a 48 mm
round lens, decentered 4 mm in.
ANSWERS 2025/2026 GRADED A +
Approximately what percentage of humans have some alteration in lens transparency
after age 65?
A. 25%
B. 50%
C. 60%
D. 75% - 60%
IOP within an eyeball occurring as a result of the constant formation and drainage of
aqueous humor; measured with a tonometer that has an average reading of what is
considered of concerns?
A. Pressure above 10mm or 15mm hg
B. Pressure above 15nn or 18mm hg
C. Pressure above 18mm or 20 hg
D. Pressure above 20mm or 25 mm hg - D. Pressure above 20mm or 25mm hg
Graves disease can be a result of which of the following?
A. Hypothyroidism
B. Hyperthyroidism
C. Esothyoidism
D. Exothyoidism - B. Hyperthyroidism
symptom of Grave's disease can include which of the following?
A. Exopthalmos
B. Endothalmos
C. Hyperthalmos
D. Hypothalamus - A exophthalmos
What is an ocular condition that is a chronic auto immune disorder with multi-system
abnormalities that is characterized by mononuclear infiltration of the lacrimal and
salivary glands called?
A. Diabetic retinopathy
B. Marfan syndrome
C. Sjögren's syndrome
D. Rheumatoid arthritis - C. Sjögren's syndrome
as a rule of thumb differences In Magnification over____ from eye to eye are usually
problematic to the wearer
A. 1%
B. 4%
C. 8%
D. 12% - B. 4%
Centers ground wide in plus lenses will result in what kind of prism? - Base out prism
,Centers ground wide in minus lenses will result in what kind of prism? - Base in prism
A plus lens moved downward from the primary position results in? - base down prism
effect
If a pair of lenses are ground with 2 diopters of base down prism in each lens the patient
will experience?
A. 4 diopters of prism
B. 2 diopters of prism
C. No prism
D. None of above - C no prism
The major cause of vertical imbalance is?
A. Emetropia
B. Anisonetroptia
C. Aniseikonia
D. Presbyopia - B. Anisometropia
A prism will bend light toward its?
A. Optical center
B. Apex
C. Abbe meridian
D. Base - D. Base
A prism will displace the object being viewed toward its?
A. Optical center
B. Apex
C. Abbe meridian
D. Base - B. Apex
Sagittal Value refers to the thickness of a minus lens with?
A. Power above 6 diopters
B. A zero center thickness
C. A zero edge thickness
D. A 1.5 nm center - B
A Sagittal value refers to the thickness of a plus lens with?
A. Power above 6 diopters
B. A zero center thickness
C. A zero edge thickness
D. A 1.5 nm center - C. A zero edge thickness
The Sagittal lens formula:
A. Does not apply to lenses with spherical curves
B. Only applies to lenses with spherical curves
, C. Only applies to lenses with aspheric curves
D. All of above - B. Only applies to lenses with spherical curves
In a cylinder lens if the strongest meridian does not run exactly through the E.D.
Meridian the lens computation will:
A. Error on the advantageous side (predict lens to be slightly thicker than actual)
B. Be if no value what so ever
C. Error on the disadvantageous side(predict lens to be slightly thinner than actual)
D. Predict the thickness exactly. - A. Error on the advantageous side (predict lens to be
slightly thicker than actual)
In a plus lens with aspheric design the surface curvature:
A. Steepens
B. Remains the same over entire surface
C. Flattens from center to edge
D. Is always biconvex - C. Flattens from center to edge
Which of the following is a new type of aspheric lens design?
A. Progressive
B. Geometric
C. Optical
D. Bitoric - D. Bitoric
The corrected curve theory is a method of maximizing optics when using:
A. Spherical curves
B. Isobars
C. Vectors
D. Periscopic curves - A. Spherical curves
On a normal frame with 10 to 12° of pantoscopic tilt the optical center should be located
about:
A. On center pupil
B. 5mm above pupil
C. 5mm below pupil
D. 2mm higher than pupil height - C. 5 mm below pupil
Which of the following prescriptions would be reduced in thickness the most using
aspheric design?
A. High plus
B. Low plus
C. High minus
D. Low minus - A. High plus
An uncut lens must be at least ______ mm in diameter to allow the cutting of a 48 mm
round lens, decentered 4 mm in.
