NBEO- Visual Perception (Non Big 8) Exam
Questions and Answers with Verified
Solutions | Latest Updated 2026
_______________ is the minimum Threshold
amount of
a variable that an individual can
detect 50% of the time.
As threshold increases, sensitivity Decreases (inversely related)
____________.
What is the main method used A) Method of ascending limits
when
determining the dark adaptation of
a
patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
,What is the main method used B) Method of descending limits
when
determining the visual acuity of a
patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
What is the main method used C) Stairstep method
when
performing a Humphrey Visual
field
on a patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
Is a patient with a strict or lax Lax criteria
criteria
more likely to have a higher
number
of false positives?
Is a patient with a strict or lax Strict criteria
criteria
more likely to have a higher
number
of false negatives?
, Which of the following techniques B) Method of Constant stimuli (takes too
is long)
LEAST likely to be used clinically
during an optometric exam?
A) Method of ascending limits
B) Method of Constant stimuli
C) Stairstep method
D) Method of descending limits
Which of the following techniques C and D
will be negatively impacted by a
patient's anticipation the MOST?
(Choose 2)
A) Stairstep method
B) Method of constant stimuli
C) Method of ascending limits
D) Method of descending limits
Which visual acuity method is an B) Teller acuity
example of a forced choice
method?
A) Snellen acuity
B) Teller acuity
C) ETDRS
D) Landolt C
_______________ provides a Signal Detection Theory
mathematical
basis for determining how a
patient
selects the signal from the noise
during a test.
Questions and Answers with Verified
Solutions | Latest Updated 2026
_______________ is the minimum Threshold
amount of
a variable that an individual can
detect 50% of the time.
As threshold increases, sensitivity Decreases (inversely related)
____________.
What is the main method used A) Method of ascending limits
when
determining the dark adaptation of
a
patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
,What is the main method used B) Method of descending limits
when
determining the visual acuity of a
patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
What is the main method used C) Stairstep method
when
performing a Humphrey Visual
field
on a patient?
A) Method of ascending limits
B) Method of descending limits
C) Stairstep method
D) Adjustment method
E) Method of constant stimuli
Is a patient with a strict or lax Lax criteria
criteria
more likely to have a higher
number
of false positives?
Is a patient with a strict or lax Strict criteria
criteria
more likely to have a higher
number
of false negatives?
, Which of the following techniques B) Method of Constant stimuli (takes too
is long)
LEAST likely to be used clinically
during an optometric exam?
A) Method of ascending limits
B) Method of Constant stimuli
C) Stairstep method
D) Method of descending limits
Which of the following techniques C and D
will be negatively impacted by a
patient's anticipation the MOST?
(Choose 2)
A) Stairstep method
B) Method of constant stimuli
C) Method of ascending limits
D) Method of descending limits
Which visual acuity method is an B) Teller acuity
example of a forced choice
method?
A) Snellen acuity
B) Teller acuity
C) ETDRS
D) Landolt C
_______________ provides a Signal Detection Theory
mathematical
basis for determining how a
patient
selects the signal from the noise
during a test.
