COT Flashcards : Visual Assessment
A visual acuity of 20/200 obtained at a distance of 4 feet should be recorded as
a. J10
b. 6/60
c. 4/200
d. <20/200
c. 4/200
If a patient’s visual acuity measures 20/70 with correction and pinholes to 20/25, which of the following is MOST likely?
a. The patient needs distance correction
b. The patient is malingering
c. The patient should be dilated and examined for retinopathy
d. The patient has cataracts
a. The patient needs distance correction
The lines of optotypes are what size in comparison to the entire optotype?
a. 1/2
b. 1/4
c. 1/5
d. 1/6
c. 1/5
Reduced visual acuity without any detectable organic cause is referred to as
a. Amblyopia
b. Strabismus
c. Anisometropia
d. Suppression
a. Amblyopia
A 55-year-old patient has worn glasses since childhood. Without glasses, the uncorrected vision improves when looking through an occluder with perforations. This phenomenon is known as the ____
a. Prism effect
b. Scatter effect
c. Pinhole effect
d. Contrast effect
c. Pinhole effect
What is the metric equivalent of 20/40 visual acuity?
a. 6/10
b. 6/12
c. 6/15
d. 6/20
b. 6/12
Dynamic visual acuity refers to
a. Acuity measured in a controlled medical office setting
b. Kinetic or moving vision
c. Contrast sensitivity acuity
d. pinhole acuity
b. Kinetic or moving vision
Measuring visual acuity with a potential acuity meter (PAM) is useful for patients with
a. Glaucoma
b. Cataracts
c. Optic Neuritis
d. Age-related macular degeneration
b. Cataracts
Near vision charts should be held how many inches from the eye?
a. 10-12
b. 14-16
c. 18-20
d. 22-24
b. 14-16
If poor vision is simply due to refractive error, the acuity should improve with use of a(n)
a. Placid disc
b. Pinhole disc
c. Occluder over non-dominant eye
d. Occluder over dominant eye
b. Pinhole disc
What is the recommended distance for assessing visual acuity?
a. 3’
b. 10’
c. 20’
d. 40’
c. 20’
If a person can clearly see an object at 20 feet that can be seen at 60 feet by a person with no refractive error, the visual acuity is said to be
a. 20/20
b. 20/40
c. 20/60
d. 20/80
c. 20/60
If a patient is unable to distinguish the largest letter on a Snellen chart, the assistant should
a. Determine if the patient can count fingers at a given distance
b. Immediately assess for hand motion
c. Darken the room and check for light perception
d. Record “unable to assess” in the patient’s chart
a. Determine if the patient can count fingers at a given distance
In visual assessment, an infant would be expected to reach toys by the age of
a. 2-4 months
b. 4-6 months
c. 6-8 months
d. 8-10 months
b. 4-6 months
