COT Preview Flashcards
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
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
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.
The presence of an iris sphinctor muscle defect may be caused by
A. damage to the iris sphinctor muscle
B. symmetric damage to the afferent visual system
C. asymmetric cataracts
D. optic nerve disease
Pupil Assessment 4%
D. optic nerve disease
An RAPD tells us that the nerves aren’t receiving light equally.
Intraocular pressure is highest during the
A. morning
B. afternoon
C. early evening
D. late evening
Tonometry 4%
A. morning
If the K value of a patient being fir for RGP contact lenses is recorded as 43.50/44.50, the BC of CL fit “on K” would be which of the following?
A. 43.50
B. 44.00
C. 44.50
D. 45.00
Keratometry 3%
A. 43.50
During alternate cover testing, the right eye moves downward as the cover is switched to the left eye. The deviation is measued using
A. base down prism over the left eye
B. base down prism over the right eye
C. base up prism over the left eye
D. base up prism over the right eye
Ocular Motility Testing 6%
B. base down prism over the right eye
Point the apex in the direction of the deviation. Hyper= BD & apex up
A lens formula of +2.00-3.00x90 What is the power at 90 degrees and 180 degrees?
A. +2.00 and -1.00
B. +2.00 and -3.00
C. +5.00 and +3.00
D. -1.00 and +2.00
Lensometry 3%
A. +2.00 and -1.00
optical cross
The astigmatic clock has black lines intersecting at a common point with the end separated by
A. 20 degree of 5 degree intervals
B. 30 degree or 10 degree intervals
C. 40 degree or 15 degree intervals
D. 50 degree or 20 degree intervals
Refraction, Retinoscopy, and Refinement 5%
B. 30 degree or 10 degree intervals
Ultrasound machines have a large number of switches and dials, however what is the only change made during an average examination using the B-scan?
A. Sound intensity
B. LCD display
C. Pulse controls
D. Transducer
Biometry 5%
A. Sound intensity
The electroretinogram (ERG) tests the function of
A. cones
B. rods
C. rods and cones
D. RPE cells
Supplemental Testing 2%
C. rods and cones
A sample of discharge or tissue cells obtained by scraping is a
A. smudge
B. fragment
C. smear
D. specimen
Microbiology 3%
C. smear
The type of drug that stimulates the effect of acetylcholine is a
A. parasympatholytic
B. parasympathomimetic
C. sympatholytic
D. sympathomimetic
Pharmacology 3%
B. parasympathomimetic
A retrobulbar injection places medication into the
A. bulbar conjunctiva
B. conjunctiva
C. eyeball
D. muscle cone
Surgical Assisting 6%
D. muscle cone
Which type of lens eliminates distortion found at the edge of the field in hand and stand readers?
A. Aspheric lens
B. Convex lens
C. Keeler lens
D. Hruby lens
Ophthalmic Patient Services and Education 12%
A. Aspheric lens
