Certified Ophthalmic Assistant (COA)
639 Questions with solved solutions.
How are systemic medications administered? - -Orally, injection (subcutaneously or
intramuscularly) or intravenously
-How should drops be properly instilled into a patient's eye? - -Into the lower cul de sac
(lower fornix)
-What does the term idiosyncrasy refer to with ophthalmic drugs? - -A bizarre, peculiar
reaction to a drug that is not commonly seen, such as tremors, excitability or even
collapse
-What is the name of the instrument used to neutralize lenses? - -Lensometer
(Lensmeter)
-When recording a prism in a spectacle prescription, what does the abbreviation BO
stand for? - -Base out
-What is determined by focusing the thin lines in a manual lensometer? - -The sphere
of the spectacle prescription
-What is the first step in performing lensometry? - -Focus the eyepiece
-When PRK is being performed, time remaining in the procedure should be announced
in increments of ______ - -10 seconds
-Name the organism that is most destructive to the eye. - -Pseudomonas Aeruginosa
-What procedure using an Argon Laser is thought to destroy areas of ischemic retina? -
-Panretinal photocoagulation or panretinal laser
-What type of intraocular injection is made at the Pars plana site with a needle and
syringe of medication? - -Intravitreal injection
-What are the parallel movements of the eyes from one gaze position to another - -
Versions
-What is the movement of one eye called - -Duction
-Versions and ductions are tested by using ________ to test the six pairs of _______
muscles. - -Six Cardinal positions, yoke
-The movement of the eye outward toward the temple is called _____ - -Abduction
, -What is the technique used to measure the radius of curvature of the anterior corneal
surface? - -A-Scan Keratometry Length Measurements
-Keratometry is performed with a device called a ______ - -Keratometer or
ophthalmometer
-Give three examples in which a Keratometry measurement would be useful. - -Contact
lens fitting, refractive surgery, intraocular lens calculations, keratoconus
-Keratometry is measured in _____ - -Diopters
-Measuring intraocular pressure is also called _____ - -Tonometry
-The higher the intraocular pressure of an eye, the ____ the eye - -Harder
-Applanation tonometry displaces less than ____ of aqueous. - -0.5 microliters
-When recording intraocular pressure, the reading on the Goldmann applanation
tonometer scale should be multiplied by ____. - -10
-Because there are no rods or cones in the optic nerve head a____ blind spot is created
in the normal visual field. - -Physiologic
-A defect in the patient's superior temporal retina, will affect the patient's ____ field of
vision. - -Inferior nasal
-The two basic methods employed to map the field of vision are ____ and ____
perimetry. - -Kinetic, static
-A localized area of reduced sensitivity in a visual field that is surrounded by an area of
greater sensitivity is termed a ____. - -Scotoma
-And unfocused eyepiece can lead to an error of ____. - -1 diopter in the K reading
-How many meridians are measured in keratometry? - -2 meridians (usually 90° apart)
-The average K reading is ____. - -43-44 diopters
-Keratometry measures the____ of the anterior curvature of the cornea. - -Central 3.3
mm
-The diffusion of oxygen through a contact lens material is referred to as ____. - -DK
value
-True or False: The application and evaluation of a diagnostic lens on the eye is the best
way to fit a contact lens - -True
, -Name the instrument used to determine the posterior surface radius of curvature of a
rigid contact lens. - -Radiuscope and or Contacto Gauge
-Increased thirst, excessive urine, production, increased hunger and weight loss are
characteristics of which endocrine disease? - -Diabetes insipidus
-What finding can occur 6 to 8 hours after a metallic foreign body enters the cornea? - -
Rust ring
-Why are alkali burns more serious than acid burns on the cornea? - -Alkali burns
penetrate deeper
-Variability in the functions of levator and extraocular muscle is characteristic in which
systemic disease? - -Myasthenia gravis
-What is the name of the mucous membrane covering the interior sclera? - -(Bulbar)
Conjunctiva
-What type of glaucoma constitutes an ocular emergency? - -Acute angle-closure
glaucoma
-Protocols for pressure patching or shields require that adhesive tape must be applied
from the ____ to the ____. - -Bridge of the nose, ear lobe
-What is the minimum thickness of safety lenses? - -3.0 mm
-What is the name of the important screening process used in emergencies determine
the patient's ocular needs? - -Triage
-What is a hemorrhage confined to the anterior chamber termed? - -Hyphema
-____ drugs induce contractions of the iris sphincter - -Miotic
-Name the three types of ophthalmic preparations placed directly in the eye. - -
Solutions, suspensions, ointments
-What is the main disadvantage of using an ophthalmic solution? - -The duration of
contact with the eye is short, therefore it requires frequent instillation
-What is the disadvantage of using an ophthalmic ointment? - -The ointment reduces
vision by creating a greasy film over the surface of the cornea, and is best used at
bedtime.
-Gross evaluation of the patient's peripheral vision can be accomplished with ____
visual field testing. - -Confrontation
, -The ____ visual field test compares the boundaries of the patient's visual field with
that of the examiner. - -Confrontation
-The Amsler grid test determines the presence and location of defects in the ____
portion of the visual field. - -Central
-During Amsler grid testing the patient should be instructed to view the grid through
his or her ____ correction. - -Near
-Checking the calibration of the Goldmann applanation tomometer is performed with a
____. - -Balance or calibration rod
-The Goldmann applanation to tonometer prism is best cleaned between patients with
____. - -Hydrogen peroxide soaks or 1:10 bleach solution
-Which dye solution is used when performing Goldmann applanation? - -Fluorescein
dye
-What is the diameter of the corneal area properly applanated by a Goldmann
tonometer? - -3.06 mm
-____ photography documents the posterior segment of the eye. - -Fundus
-____ devices create three dimensional digital images of the optic nerve, and retina. - -
Tomography
-Three of the most common tomographic image devices are ____, ____, and ____. -
-Optical Coherence Tomography (OCT), Heidelberg Retinal Tomography (HRT), and
GDx scanner laser polorimeter
-The data provided by tomographic devices are useful in evaluating progressive ____
and ____ damage. - -Optic nerve and retinal nerve fiber layer
-Ophthalmic photography serves to ____ and ___ ophthalmic conditions. - -
Document and diagnose
-Which area of the cornea is the thickest? - -The stroma
-What type of pets should not be used on a patient with a lacerated globe? - -A pressure
patch
-When long waiting times occur in the office what is the ophthalmic medical assistant's
responsibility - -To communicate with patients and keep them informed in a sensitive
manner
-What can be used to immobilize an infant for an ophthalmic examination? - -A
papoose board
639 Questions with solved solutions.
How are systemic medications administered? - -Orally, injection (subcutaneously or
intramuscularly) or intravenously
-How should drops be properly instilled into a patient's eye? - -Into the lower cul de sac
(lower fornix)
-What does the term idiosyncrasy refer to with ophthalmic drugs? - -A bizarre, peculiar
reaction to a drug that is not commonly seen, such as tremors, excitability or even
collapse
-What is the name of the instrument used to neutralize lenses? - -Lensometer
(Lensmeter)
-When recording a prism in a spectacle prescription, what does the abbreviation BO
stand for? - -Base out
-What is determined by focusing the thin lines in a manual lensometer? - -The sphere
of the spectacle prescription
-What is the first step in performing lensometry? - -Focus the eyepiece
-When PRK is being performed, time remaining in the procedure should be announced
in increments of ______ - -10 seconds
-Name the organism that is most destructive to the eye. - -Pseudomonas Aeruginosa
-What procedure using an Argon Laser is thought to destroy areas of ischemic retina? -
-Panretinal photocoagulation or panretinal laser
-What type of intraocular injection is made at the Pars plana site with a needle and
syringe of medication? - -Intravitreal injection
-What are the parallel movements of the eyes from one gaze position to another - -
Versions
-What is the movement of one eye called - -Duction
-Versions and ductions are tested by using ________ to test the six pairs of _______
muscles. - -Six Cardinal positions, yoke
-The movement of the eye outward toward the temple is called _____ - -Abduction
, -What is the technique used to measure the radius of curvature of the anterior corneal
surface? - -A-Scan Keratometry Length Measurements
-Keratometry is performed with a device called a ______ - -Keratometer or
ophthalmometer
-Give three examples in which a Keratometry measurement would be useful. - -Contact
lens fitting, refractive surgery, intraocular lens calculations, keratoconus
-Keratometry is measured in _____ - -Diopters
-Measuring intraocular pressure is also called _____ - -Tonometry
-The higher the intraocular pressure of an eye, the ____ the eye - -Harder
-Applanation tonometry displaces less than ____ of aqueous. - -0.5 microliters
-When recording intraocular pressure, the reading on the Goldmann applanation
tonometer scale should be multiplied by ____. - -10
-Because there are no rods or cones in the optic nerve head a____ blind spot is created
in the normal visual field. - -Physiologic
-A defect in the patient's superior temporal retina, will affect the patient's ____ field of
vision. - -Inferior nasal
-The two basic methods employed to map the field of vision are ____ and ____
perimetry. - -Kinetic, static
-A localized area of reduced sensitivity in a visual field that is surrounded by an area of
greater sensitivity is termed a ____. - -Scotoma
-And unfocused eyepiece can lead to an error of ____. - -1 diopter in the K reading
-How many meridians are measured in keratometry? - -2 meridians (usually 90° apart)
-The average K reading is ____. - -43-44 diopters
-Keratometry measures the____ of the anterior curvature of the cornea. - -Central 3.3
mm
-The diffusion of oxygen through a contact lens material is referred to as ____. - -DK
value
-True or False: The application and evaluation of a diagnostic lens on the eye is the best
way to fit a contact lens - -True
, -Name the instrument used to determine the posterior surface radius of curvature of a
rigid contact lens. - -Radiuscope and or Contacto Gauge
-Increased thirst, excessive urine, production, increased hunger and weight loss are
characteristics of which endocrine disease? - -Diabetes insipidus
-What finding can occur 6 to 8 hours after a metallic foreign body enters the cornea? - -
Rust ring
-Why are alkali burns more serious than acid burns on the cornea? - -Alkali burns
penetrate deeper
-Variability in the functions of levator and extraocular muscle is characteristic in which
systemic disease? - -Myasthenia gravis
-What is the name of the mucous membrane covering the interior sclera? - -(Bulbar)
Conjunctiva
-What type of glaucoma constitutes an ocular emergency? - -Acute angle-closure
glaucoma
-Protocols for pressure patching or shields require that adhesive tape must be applied
from the ____ to the ____. - -Bridge of the nose, ear lobe
-What is the minimum thickness of safety lenses? - -3.0 mm
-What is the name of the important screening process used in emergencies determine
the patient's ocular needs? - -Triage
-What is a hemorrhage confined to the anterior chamber termed? - -Hyphema
-____ drugs induce contractions of the iris sphincter - -Miotic
-Name the three types of ophthalmic preparations placed directly in the eye. - -
Solutions, suspensions, ointments
-What is the main disadvantage of using an ophthalmic solution? - -The duration of
contact with the eye is short, therefore it requires frequent instillation
-What is the disadvantage of using an ophthalmic ointment? - -The ointment reduces
vision by creating a greasy film over the surface of the cornea, and is best used at
bedtime.
-Gross evaluation of the patient's peripheral vision can be accomplished with ____
visual field testing. - -Confrontation
, -The ____ visual field test compares the boundaries of the patient's visual field with
that of the examiner. - -Confrontation
-The Amsler grid test determines the presence and location of defects in the ____
portion of the visual field. - -Central
-During Amsler grid testing the patient should be instructed to view the grid through
his or her ____ correction. - -Near
-Checking the calibration of the Goldmann applanation tomometer is performed with a
____. - -Balance or calibration rod
-The Goldmann applanation to tonometer prism is best cleaned between patients with
____. - -Hydrogen peroxide soaks or 1:10 bleach solution
-Which dye solution is used when performing Goldmann applanation? - -Fluorescein
dye
-What is the diameter of the corneal area properly applanated by a Goldmann
tonometer? - -3.06 mm
-____ photography documents the posterior segment of the eye. - -Fundus
-____ devices create three dimensional digital images of the optic nerve, and retina. - -
Tomography
-Three of the most common tomographic image devices are ____, ____, and ____. -
-Optical Coherence Tomography (OCT), Heidelberg Retinal Tomography (HRT), and
GDx scanner laser polorimeter
-The data provided by tomographic devices are useful in evaluating progressive ____
and ____ damage. - -Optic nerve and retinal nerve fiber layer
-Ophthalmic photography serves to ____ and ___ ophthalmic conditions. - -
Document and diagnose
-Which area of the cornea is the thickest? - -The stroma
-What type of pets should not be used on a patient with a lacerated globe? - -A pressure
patch
-When long waiting times occur in the office what is the ophthalmic medical assistant's
responsibility - -To communicate with patients and keep them informed in a sensitive
manner
-What can be used to immobilize an infant for an ophthalmic examination? - -A
papoose board
