COA Study Guide Test-3 Questions and
Answers Top Rated Latest Version 2026
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
____ is any irritation or inflammation of the conjunctiva
Conjuntivitis
In fundus photography, when the camera is too far from the
eye, a ___ ___ will form around the image.
Blue-Grey halo
"Diagnostic" or "standardized" ____ are performed for
quantitative evaluation of a tissue's structure, reflectivity,
and sound absorption
A-Scans
____ photography is used to photograph the anterior
segment of the eye.
Slit-lamp
Specular photomicrography is a method of evaluating the
____ surface of the cornea.
Endothelial
, The visual acuity notation 20/200 indicates the patient could
see the 200 optotype at ____ feet.
20
If the patient perceives light and can indicate the source
direction, the vision is recorded as ____.
Light perception with projection (LPw/P)
The distance of 20 feet is used in visual acuity assessment
because it approximates____.
Optical infinity
The visual acuity value of 20/40 is expressed as the metric
equivalent ____.
6/12
The pinhole acuity test is used to confirm whether ____ ____
is the cause of a decrease in visual acuity.
Refractive error
What is the normal range of intraocular pressure?
13-20 mm Hg
Which method of tonometry is described as the
measurement of the amount of pressure needed to flatten the
cornea buy a standard amount?
Applanation tonometry
What measurement error is produced when the fluorescein
rings are too narrow during applanation tonometry?
Falsely low reading
What measurement error is introduced when the patient
holding his or her breath or wearing a collar that is buttoned
too tightly, is applanated?
Falsely high reading
Measuring intraocular pressure is also called ____.
Tonometry
____ ____ is a red dye useful in evaluating the integrity of the
corneal epithelium.
Rose bengal
Answers Top Rated Latest Version 2026
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
____ is any irritation or inflammation of the conjunctiva
Conjuntivitis
In fundus photography, when the camera is too far from the
eye, a ___ ___ will form around the image.
Blue-Grey halo
"Diagnostic" or "standardized" ____ are performed for
quantitative evaluation of a tissue's structure, reflectivity,
and sound absorption
A-Scans
____ photography is used to photograph the anterior
segment of the eye.
Slit-lamp
Specular photomicrography is a method of evaluating the
____ surface of the cornea.
Endothelial
, The visual acuity notation 20/200 indicates the patient could
see the 200 optotype at ____ feet.
20
If the patient perceives light and can indicate the source
direction, the vision is recorded as ____.
Light perception with projection (LPw/P)
The distance of 20 feet is used in visual acuity assessment
because it approximates____.
Optical infinity
The visual acuity value of 20/40 is expressed as the metric
equivalent ____.
6/12
The pinhole acuity test is used to confirm whether ____ ____
is the cause of a decrease in visual acuity.
Refractive error
What is the normal range of intraocular pressure?
13-20 mm Hg
Which method of tonometry is described as the
measurement of the amount of pressure needed to flatten the
cornea buy a standard amount?
Applanation tonometry
What measurement error is produced when the fluorescein
rings are too narrow during applanation tonometry?
Falsely low reading
What measurement error is introduced when the patient
holding his or her breath or wearing a collar that is buttoned
too tightly, is applanated?
Falsely high reading
Measuring intraocular pressure is also called ____.
Tonometry
____ ____ is a red dye useful in evaluating the integrity of the
corneal epithelium.
Rose bengal
