COT 2 Flashcards
(200 cards)
What is not important when documenting the history of an ocular injury?
A. How the injury occurred
B. Presence of others when the injury occurred
C. The time the injury occurred
D. Treatment received since the injury occurred
History and Documentation 3%
B. Presence of others when the injury occurred
Which one of the following ocular conditions will least likely present in a patient’s family history?
A. Keratoconus
B. Nystagmus
C. Conjunctivitis
D. Retinitis pigmentosa
History and Documentation 3%
C. Conjunctivitis
When evaluating a patient for cataract surgery, which of the following systemic illnesses is least important?
A. Cardiac problems
B. Diabetes
C. Hypertension
D. Urinary incontinence
History and Documentation 3%
D. Urinary incontinence
This does not affect the actual surgery unless the pt is on tamsulosin
Which symptoms might suggest angle-closure glaucoma?
A. Flashes and floaters
B. Slowly progressive visual loss
C. Bleeding into the anterior chamber
D. Rainbow colored halos around lights
History and Documentation 3%
D. Rainbow colored halos around lights
What is the correct interpretation of 1 gtt TID OU?
A. One drop to the left eye three times a day
B. One drops to both eyes three times a day
C. One injection to both arms three times a day
D. One drop to both eyes three times a day as needed
History and Documentation 3%
B. One drops to both eyes three times a day
A history or corticosteroid use is of least importance when ascertaining which condition?
A. Cataracts
B. Glaucoma
C. Macular Degeneration
D. Uveitis
History and Documentation 3%
C. Macular Degeneration
Steroid use can affect cataract growth, increase IOP, & rebound uveitis
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
Visual Assessment 7%
C. 4/200
The numerator represents the distance the patient is from the chart.
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
Visual Assessment 7%
A. The patient needs distance correction
The pinhole gives you a potential vision due to a refractive error
The lines of Snellen optotypes are what size in comparison to the entire optotype?
A. 1/2
B. 1/4
C. 1/5
D. 1/6
Visual Assessment 7%
C. 1/5
Regardless of the optotype, this is true, but it’s always best to think of the E with these questions.
Reduced visual acuity without an detectable organice cause is referred to as
A. amblyopia
B. strabismus
C. anisometropia
D. suppression
Visual Assessment 7%
A. amblyopia
An amblyopic has a healthy eye and brain, but decreased vision
A 55-year-old patient has worn glasses since childhood. Without glasses, a patient’s uncorrected vision improves when looking tough an occluder with perforations. This phenomenon is known as the
A. prism effect
B. scatter effect
C. pinhole effect
D. contrast effect
Visual Assessment 7%
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
Visual Assessment 7%
B. 6/12
20/20=6/6; 20/30=6/9; 20/40=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
Visual Assessment 7%
B. kinetic or moving vision
Measuring visual acuity with a potential acuity meter is useful for patients with
A. glaucoma
B. cataracts
C. optic neuritis
D. age-related macular degeneration
Visual Assessment 7%
B. cataracts
If you have a questions like this that doesn’t say “most”, add it to the question to figure out your answer. They are always looking for the best answer to the question even when more than one answer applies.
Near vision charts should be held how many inches from the eye?
A. 10-12
B. 14-16
C. 18-20
D. 22-24
Visual Assessment 7%
B. 14-16
If poor vision is simply due to refractive error, the acuity should improve with the use of a(n)
A. placido disc
B. pinhole disc
C. occluder over non-dominant eye
D. occluder over dominant eye
Visual Assessment 7%
B. pinhole disc
What is the recommended distance for assessing visual acuity?
A. 20 cm
B. 20 mm
C. 20’
D. 20”
Visual Assessment 7%
C. 20’
‘ means feet, while “ means inches
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. 60/20
Visual Assessment 7%
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
Visual Assessment 7%
A. determine if the patient can count fingers at a given distance
In visual assessment, an infant would be expected to reach for toys by the age of
A. 2-4 months
B. 4-6 months
C. 6-8 months
D. 8-10 months
Visual Assessment 7%
B. 4-6 months
The visual field defect in which there is a complete type of nerve bundle defect emanating from the blind spot, arching over central fixation, and ending on the horizontal line is a(n)
A. absolute scotoma
B. Bjerrum scotoma
C. contraction
D. relative scotoma
Visual Field Testing 3%
B. Bjerrum scotoma
They always emanate from the blind spot
Homonymous congrous visual field defects with macular sparing are located in what part of the visual pathway?
A. Occipital cortex
B. Optic chiasm
C. Optic nerve
D. Optic radiation
Visual Field Testing 3%
A. Occipital cortex
The fact that it is macular sparing doesn’t matter.
The fact that it is homonymous (same sided) means that it must be BEHIND the optic chiasm. The optic nerve is in front of the optic chiasm. If the problem was in the optic radiations, the defect would not be congrous, meaning equal in size and shape.
With a 3 mm white target on the perimeter of a 330-degree radius, the average peripheral limit is about
A. 75° out, 55° down, 40° in, and 40° up
B. 85° out, 65° down, 50° in, and 50° up
C. 95° out, 75° down, 60° in, and 60° up
D. 105° out, 85° down, 70° in, and 40° up
Visual Field Testing 3%
C. 95° out, 75° down, 60° in, and 60° up
Our total width of view is ~155°
what type of patient generally requires a threshold 24-degree central field test?
A. Cataract
B. Diplopia
C. Glaucoma
D. Low vision
Visual Field Testing 3%
C. Glaucoma