COT QUIZ Flashcards
“1 year ago”, “Constant”, “Suddenly” are all examples of what component of the HPI?
a. Quality
b. Modifying Factors
c. Context
d. Timing
a. Quality
b. Modifying Factors
c. Context
d. Timing
1 mm radius of corneal curvature equals
a. 1 D.
b. 2.5 D.
c. 5 D.
d. 10 D.
a. 1 D.
b. 2.5 D.
c. 5 D.
d. 10 D.
A +1D lens is decentered by 10mm. What is the amount of prism inflicted by this decentered lens?
a. 0.1D
b. 1D
c. 5D
d. 10D
a. 0.1D
b. 1D
c. 5D
d. 10D
A +5D spectacle lens is decentered by 4mm. What is the amount of prism inflicted by this decentered lens?
a. 0.5 D.
b. 2 D.
c. 10 D.
d. 20 D.
a. 0.5 D.
b. 2 D.
c. 10 D.
d. 20 D.
A 0.50 D lens has a focal length of
a. 0.25 meters.
b. 2 meters.
c. 5 meters.
d. 10 meters.
a. 0.25 meters.
b. 2 meters.
c. 5 meters.
d. 10 meters.
A contact Lens that doesn’t center well and is uncomfortable indicates the contact lens is
a. too flat.
b. too steep.
c. too tight.
d. just right.
a. too flat.
b. too steep.
c. too tight.
d. just right.
A dark shadow arising from inferior VF or an ascending veil are symptoms of
a. advanced glaucoma.
b. cataract.
c. retinal detachment.
d. macular degeneration.
a. advanced glaucoma.
b. cataract.
c. retinal detachment.
d. macular degeneration.
A direct ophthalmoscope should be
a. stored with viewing lens at zero
b. kept in charge when not in use
c. used with the transformer set on the highest setting.
d. all of the above
a. stored with viewing lens at zero
b. kept in charge when not in use
c. used with the transformer set on the highest setting.
d. all of the above
A fluorescein pattern on a contact lens wearer that shows bubbles are under the contact lens indicates the lens is
a. too flat.
b. too steep.
c. fit just right.
d. none of the above
a. too flat.
b. too steep.
c. fit just right.
d. none of the above
A Goldmann tonometer prism should be disinfected with
a. Alcohol
b. Hydrogen Peroxide
c. Acetone
d. UV Radiation
a. Alcohol
b. Hydrogen Peroxide
c. Acetone
d. UV Radiation
A patient who reports they were scratched in the eye with a palm frond is MOST at risk of developing what kind of infection?
a. Bacterial
b. Fungal
c. Viral
d. Parasitic
a. Bacterial
b. Fungal
c. Viral
d. Parasitic
A patient’s Schirmer’s II readings are 12 mm OD and 14 mm OS. This indicates the patient has
a. dry Eyes.
b. excessive lacrimation.
c. normal tear output.
d. none of the above
a. dry Eyes.
b. excessive lacrimation.
c. normal tear output.
d. none of the above
A phoria is
a. a disease involving a cranial nerve.
b. associated with Myasthenia Gravis.
c. normal.
d. present with both eyes open.
a. a disease involving a cranial nerve.
b. associated with Myasthenia Gravis.
c. normal.
d. present with both eyes open.
A rapid and weak pulse, skin rash and difficulty breathing after taking a medication are signs of
a. a medication side effect.
b. corticosteroid use.
c. an allergic reaction.
d. Bradycardia.
a. a medication side effect.
b. corticosteroid use.
c. an allergic reaction.
d. Bradycardia.
A right esotropia is characterized by the right eye being deviated
Select one:
a. up.
b. down.
c. in.
d. out
a. up.
b. down.
c. in.
d. out
A substances’ index of refraction is calculated by
Select one:
a. The speed of light in air divided by the speed of light in the substance.
b. The speed of light in the substance multiplied by the speed of light in air.
c. The speed of sound in air divided by the speed of sound in the substance.
d. The speed of light in the substance divided by the speed of light in water.
a. The speed of light in air divided by the speed of light in the substance.
b. The speed of light in the substance multiplied by the speed of light in air.
c. The speed of sound in air divided by the speed of sound in the substance.
d. The speed of light in the substance divided by the speed of light in water.
A trichromat
Select one:
a. cannot detect green pigments.
b. can only see in shades of gray.
c. cannot detect red pigments.
d. has normal color vision.
Select one:
a. cannot detect green pigments.
b. can only see in shades of gray.
c. cannot detect red pigments.
d. has normal color vision.
A Typical 55 year old patient is likely to require an ADD power of
Select one:
a. +1.50.
b. +2.00.
c. +2.50.
d. +3.00.
Select one:
a. +1.50.
b. +2.00.
c. +2.50.
d. +3.00.
A YAG LASER is used to
Select one:
a. clear posterior capsular opacification.
b. seal leaking blood vessels in the retina.
c. alter the cornea to change the refractive error.
d. alter the trabecular meshwork to lower IOP.
a. clear posterior capsular opacification.
b. seal leaking blood vessels in the retina.
c. alter the cornea to change the refractive error.
d. alter the trabecular meshwork to lower IOP.
Accommodative Esotropia occurs due to
Select one:
a. the eyes requiring an extraordinary amount of accommodation.
b. hypertropia.
c. a congenital cranial nerve palsy.
d. none of the above
Select one:
a. the eyes requiring an extraordinary amount of accommodation.
b. hypertropia.
c. a congenital cranial nerve palsy.
d. none of the above
All of the following are TRUE about binocular diplopia EXCEPT:
Select one:
a. it can occur with or without glasses.
b. it can be caused by trauma, a nerve palsy or stroke.
c. it goes away when one eye is covered.
d. it only occurs when looking at near.
a. it can occur with or without glasses.
b. it can be caused by trauma, a nerve palsy or stroke.
c. it goes away when one eye is covered.
d. it only occurs when looking at near.
All of the following can cause irregularly shaped pupils EXCEPT:
Select one:
a. synechiae.
b. hippus.
c. acute angle closure glaucoma.
d. surgery.
Select one:
a. synechiae.
b. hippus.
c. acute angle closure glaucoma.
d. surgery.
All of the following instruments use LASER technology EXCEPT:
Select one:
a. IOL Master.
b. OCT.
c. pachymetry.
d. GDX.
Select one:
a. IOL Master.
b. OCT.
c. pachymetry.
d. GDX.
All of the following may be used to measure a contact lens EXCEPT:
Select one:
a. ultrasonic transducer.
b. lensmeter.
c. microspherometer.
d. distometer.
a. ultrasonic transducer.
b. lensmeter.
c. microspherometer.
d. distometer.
Alpha Adrenergenics
Select one:
a. work by decreasing the amount of aqueous produced.
b. are the most likely eye drop to cause an allergic reaction.
c. can cause drowsiness and fatigue.
d. all of the above
Select one:
a. work by decreasing the amount of aqueous produced.
b. are the most likely eye drop to cause an allergic reaction.
c. can cause drowsiness and fatigue.
d. all of the above
An autoclave sterilizes by
Select one:
a. boiling.
b. moist heat under pressure.
c. ultraviolet rays.
d. chemicals.
select one:
a. boiling.
b. moist heat under pressure.
c. ultraviolet rays.
d. chemicals.
An axial length of 24.9 is
Select one:
a. within the standard dimensions of the eye.
b. longer than the standard dimensions of the eye.
c. shorter than the standard dimensions of the eye.
d. none of the above
a. within the standard dimensions of the eye.
b. longer than the standard dimensions of the eye.
c. shorter than the standard dimensions of the eye.
d. none of the above
An NEMB notifies the patient that
Select one:
a. the practice does not accept Medicare Assignment.
b. a service may not be covered by Medicare.
c. they will have to pay the fee because their deductible has not been met.
d. a service will not be covered by Medicare.
Select one:
a. the practice does not accept Medicare Assignment.
b. a service may not be covered by Medicare.
c. they will have to pay the fee because their deductible has not been met.
d. a service will not be covered by Medicare.
Aniseikonia refers to the
Select one:
a. difference in refractive error between 2 eyes.
b. difference in pupil sizes of > 1mm.
c. amount of prism in a spectacle Rx.
d. difference in perceived image size due to refractive error.
Select one:
a. difference in refractive error between 2 eyes.
b. difference in pupil sizes of > 1mm.
c. amount of prism in a spectacle Rx.
d. difference in perceived image size due to refractive error.
Applanation tonometry is based on what principle?
Select one:
a. The Prentice Principle
b. The Imbert-Fick Principle
c. The Goldmann Principle
d. Snell’s Law
Select one:
a. The Prentice Principle
b. The Imbert-Fick Principle
c. The Goldmann Principle
d. Snell’s Law
Aqueous fluid forms in the _____ and exits through the _________.
Select one:
a. ciliary process / trabecular meshwork then aqueous veins
b. ciliary body / trabecul meshwork
c. iris / canal of Sclemm then aqueous veins
d. ciliary body / canal of Schlemm
Select one:
a. ciliary process / trabecular meshwork then aqueous veins
b. ciliary body / trabecul meshwork
c. iris / canal of Sclemm then aqueous veins
d. ciliary body / canal of Schlemm
Avastin, Macugen and Lucentis are examples of
Select one:
a. Beta-Blockers.
b. Anti VEGF drugs.
c. NSAIDs.
d. steroids.
Select one:
a. Beta-Blockers.
b. Anti VEGF drugs.
c. NSAIDs.
d. steroids.
Binocular diplopia occurs
Select one:
a. when one eye is covered.
b. due to ocular misalignment.
c. when a patient has head tilt.
d. due to anisocoria.
Select one:
a. when one eye is covered.
b. due to ocular misalignment.
c. when a patient has head tilt.
d. due to anisocoria.
Blurred vision secondary to organic disease
Select one:
a. is corrected with spectacles.
b. usually occurs at all distances and with all activities.
c. usually occurs at a particular distance.
d. is usually associated with a specific activity.
Select one:
a. is corrected with spectacles.
b. usually occurs at all distances and with all activities.
c. usually occurs at a particular distance.
d. is usually associated with a specific activity.
Bulbs in Welch Allyn Retinoscopes and Transilluminators are removed by
Select one:
a. loosening with a 5/16 Allen wrench, then flipping with a screwdriver.
b. pulling them straight out.
c. unscrewing them.
d. none of the above
Select one:
a. loosening with a 5/16 Allen wrench, then flipping with a screwdriver.
b. pulling them straight out.
c. unscrewing them.
d. none of the above
By age 3 months a child should be able to
Select one:
a. use an Allen chart.
b. reach for a toy.
c. follow light.
d. none of the above
Select one:
a. use an Allen chart.
b. reach for a toy.
c. follow light.
d. none of the above
Calculate the spherical equivalent of -3.50 +1.00 x 180
Select one:
a. -2.50.
b. -3.00.
c. +2.50.
d. -0.50.
Select one:
a. -2.50.
b. -3.00.
c. +2.50.
d. -0.50.
Causes of Color Deficiency include
Select one:
a. optic nerve disease.
b. congenital causes.
c. retinal diseases.
d. all of the Above
Select one:
a. optic nerve disease.
b. congenital causes.
c. retinal diseases.
d. all of the Above
Causes of cranial nerve palsies include
Select one:
a. head Trauma.
b. basilar artery insufficiency.
c. stroke.
d. all of the above
Select one:
a. head Trauma.
b. basilar artery insufficiency.
c. stroke.
d. all of the above
Cellulitis, boils and styes are caused by the ______ bacteria.
Select one:
a. strep
b. staph
c. corneobacterium
d. gonococcus
Select one:
a. strep
b. staph
c. corneobacterium
d. gonococcus
Choroidal flush occurs during which phase of fluorescein angiography?
Select one:
a. Arterial
b. Capillary
c. Venous
d. Pre-Arterial
Select one:
a. Arterial
b. Capillary
c. Venous
d. Pre-Arterial
Cold Sterilization is a good option when
Select one:
a. you want to save money.
b. heat would damage or destroy an instrument.
c. you don’t need to use the instrument for at least 20 minutes.
d. all of the above
Select one:
a. you want to save money.
b. heat would damage or destroy an instrument.
c. you don’t need to use the instrument for at least 20 minutes.
d. all of the above
Contact lenses are measured by the
Select one:
a. posterior radius at the periphery of lens.
b. anterior radius to the end of the lens.
c. posterior radius at the apex of lens.
d. sagittal height plus radius of lens.
a. posterior radius at the periphery of lens.
b. anterior radius to the end of the lens.
c. posterior radius at the apex of lens.
d. sagittal height plus radius of lens.
Convert the following script to minus cyl: +1.00 +1.75 x 170
Select one:
a. +2.75 -1.75 x 170
b. +2.75 -1.75 x 080
c. -0.75 -1.75 x 170
d. -0.75 -1.75 x 080
Select one:
a. +2.75 -1.75 x 170
b. +2.75 -1.75 x 080
c. -0.75 -1.75 x 170
d. -0.75 -1.75 x 080
Corneal edema can be caused by
Select one:
a. infection.
b. corneal Scar.
c. inflammation.
d. all of the above
Select one:
a. infection.
b. corneal Scar.
c. inflammation.
d. all of the above
Corneal Topographers measure
Select one:
a. only the central 2 mm of K.
b. the K limbus to limbus.
c. corneal thickness.
d. only the peripheral 2 mm of K.
Select one:
a. only the central 2 mm of K.
b. the K limbus to limbus.
c. corneal thickness.
d. only the peripheral 2 mm of K.
Distorted vision
Select one:
a. can occur due to macular disorders.
b. tends to occur in emmetropes.
c. typically is the first sign of glaucoma.
d. occurs in patients with Vitamin A deficiency.
Select one:
a. can occur due to macular disorders.
b. tends to occur in emmetropes.
c. typically is the first sign of glaucoma.
d. occurs in patients with Vitamin A deficiency.
DK Value refers to a contact lens’
Select one:
a. amount of spherical aberration.
b. oxygen transmissibility.
c. thickness at center and periphery.
d. diameter vs. Keratometry.
Select one:
a. amount of spherical aberration.
b. oxygen transmissibility.
c. thickness at center and periphery.
d. diameter vs. Keratometry.
Dry heat as a method of sterilization
Select one:
a. is good to use for sterilizing dry goods such as gowns, gloves and drapes.
b. is fast.
c. requires little maintenance and cleaning.
d. all of the above
Select one:
a. is good to use for sterilizing dry goods such as gowns, gloves and drapes.
b. is fast.
c. requires little maintenance and cleaning.
d. all of the above
During an automated visual field test, the patient does not respond to a bright stimulus at a point in their visual field at which they previously responded to a dimmer stimulus. This is called a(n)
Select one:
a. false positive.
b. false negative.
c. fixation loss.
d. artifact.
Select one:
a. false positive.
b. false negative.
c. fixation loss.
d. artifact.
During an automated visual field test, the patient has several fixation losses; however, you are monitoring the patient’s fixation with the monitor and their eye is remaining fixated properly. What could be the cause of the fixation losses?
Select one:
a. The fellow eye is not patched.
b. The patient is anxious.
c. The patient did not understand your instructions.
d. All of the above
Select one:
a. The fellow eye is not patched.
b. The patient is anxious.
c. The patient did not understand your instructions.
d. All of the above
Eye Codes
Select one:
a. are used by all specialties.
b. are much more stringent than E and M codes.
c. have 2 levels – comprehensive and intermediate.
d. none of the above
Select one:
a. are used by all specialties.
b. are much more stringent than E and M codes.
c. have 2 levels – comprehensive and intermediate.
d. none of the above
Fluroescein angiography is based on the theory of
Select one:
a. how photons of energy travel from their source in a wave pattern.
b. how ultrasound travels through tissue at varying speeds.
c. how LASER influences sound wave patterns.
d. the reflection pattern of a placido disk.
Select one:
a. how photons of energy travel from their source in a wave pattern.
b. how ultrasound travels through tissue at varying speeds.
c. how LASER influences sound wave patterns.
d. the reflection pattern of a placido d
For billing and coding purposes, the primary diagnosis must correlate to the
Select one:
a. NEMB.
b. patient’s chief complaint or past ocular history.
c. exam findings.
d. ABN.
Select one:
a. NEMB.
b. patient’s chief complaint or past ocular history.
c. exam findings.
d. ABN.
Fresnel Prism
Select one:
a. is only used for convergence insufficiencies.
b. magnifies images.
c. is heavy.
d. is ground into the lens.
Select one:
a. is only used for convergence insufficiencies.
b. magnifies images.
c. is heavy.
d. is ground into the lens.
Fresnel Prism is available in powers up to
Select one:
a. 15 D.
b. 25 D.
c. 40 D.
d. 50 D.
Select one:
a. 15 D.
b. 25 D.
c. 40 D.
d. 50 D.
Front surface mirrors should be cleaned with
Select one:
a. dry tissues or paper towels.
b. canned air or a camel hair brush.
c. alcohol.
d. glass cleaner.
Select one:
a. dry tissues or paper towels.
b. canned air or a camel hair brush.
c. alcohol.
d. glass cleaner.
Goldmann tonometers are checked for calibration at what pressure readings?
Select one:
a. 10, 20, 40
b. 0, 20, 40
c. 0, 20, 60
d. 10, 40, 60
Select one:
a. 10, 20, 40
b. 0, 20, 40
c. 0, 20, 60
d. 10, 40, 60
Ground in prism is used for
Select one:
a. vertical prism of > 1D.
b. convergence insufficiency.
c. large horizontal phorias.
d. all of the above.
Select one:
a. vertical prism of > 1D.
b. convergence insufficiency.
c. large horizontal phorias.
d. all of the above.
Herpes Zoster is a
Select one:
a. virus.
b. bacteria.
c. fungus.
d. parasite.
Select one:
a. virus.
b. bacteria.
c. fungus.
d. parasite.
Hoffer Q and Haigis IOL Calculation Formulas are used in patients with
Select one:
a. short eyes.
b. long eyes.
c. aphakia.
d. anatomically narrow angles.
Select one:
a. short eyes.
b. long eyes.
c. aphakia.
d. anatomically narrow angles
If a +8D spectacle is adjusted so it is positioned 3 mm farther away from the eye, its effective power will be
Select one:
a. increased – more plus.
b. decreased – less plus.
c. unchanged.
d. None of the above
Select one:
a. increased – more plus.
b. decreased – less plus.
c. unchanged.
d. None of the above
If a lensmeter is found to be out of calibration it should
Select one:
a. be sent to the factory for recalibration.
b. be recalibrated in the office with trial lenses.
c. have the contact points and bulb housing checked, then recheck calibration.
d. be turned off then back on, then recalibrated using the special calibration balls which are included with the unit.
Select one:
a. be sent to the factory for recalibration.
b. be recalibrated in the office with trial lenses.
c. have the contact points and bulb housing checked, then recheck calibration.
d. be turned off then back on, then recalibrated using the special calibration balls which are included with the unit.
If the diameter of a contact lens remains the same but the base curve is made larger, the sagittal vault of the lens is
Select one:
a. decreased and the lens becomes flatter.
b. increased and the lens becomes steeper.
c. decreased and the lens becomes steeper.
d. increased and the lens becomes flatter.
a. decreased and the lens becomes flatter.
b. increased and the lens becomes steeper.
c. decreased and the lens becomes steeper.
d. increased and the lens becomes flatter.
In Goldmann Perimetry, an isopter refers to
Select one:
a. the boundaries of an area in which the patient could see a given level of illumination.
b. a measurement of visual field loss.
c. the amount of illumination at which the patient responded at least 50% of the time.
d. the size of the stimulus.
a. the boundaries of an area in which the patient could see a given level of illumination.
b. a measurement of visual field loss.
c. the amount of illumination at which the patient responded at least 50% of the time.
d. the size of the stimulus.
In Goldmann tonometry, the pressure is determined by
Select one:
a. the amount of aqueous which is displaced.
b. central corneal thickness divided by the drum reading multiplied by 3.14.
c. the amount of weight required to flatten the cornea a given amount.
d. none of the above
Select one:
a. the amount of aqueous which is displaced.
b. central corneal thickness divided by the drum reading multiplied by 3.14.
c. the amount of weight required to flatten the cornea a given amount.
d. none of the above
In measuring the test parameters used in Goldmann Perimetry, what does the Roman numeral represent?
Select one:
a. The brightness of the stimulus
b. The size of the stimulus
c. The sensitivity of the patient’s response
d. The rate at which the stimulus moved
a. The brightness of the stimulus
b. The size of the stimulus
c. The sensitivity of the patient’s response
d. The rate at which the stimulus moved
Involuntary bodily functions such as cardiovascular, respiratory and digestive functions are controlled by the
Select one:
a. Somatic Nervous System.
b. Autonomic Nervous System.
c. alpha receptors.
d. beta receptors.
Select one:
a. Somatic Nervous System.
b. Autonomic Nervous System.
c. alpha receptors.
d. beta receptors.
IV Fluorescein dosage is administered according to the patient’s
Select one:
a. age.
b. weight.
c. sex.
d. refractive error.
Select one:
a. age.
b. weight.
c. sex.
d. refractive error.
Jackson cross cylinders should be cleaned
Select one:
a. by removing from the frame, cleaning with lens cleaner and replaced.
b. by rubbing with a 1:4 alcohol solution.
c. by gently wiping with a damp cloth.
d. with a cotton tipped applicator soaked in alcohol.
Select one:
a. by removing from the frame, cleaning with lens cleaner and replaced.
b. by rubbing with a 1:4 alcohol solution.
c. by gently wiping with a damp cloth.
d. with a cotton tipped applicator soaked in alcohol.