Certified Ophthalmic Assistant (COA) Practice Exam – Comprehensive Questions and Answers
Study Guide
When using an interferometer (do 3 things),.... - ✔✔1. Have pupil well-dilated
2. First used horizontal/vertical lines until acuity is reached (and then use oblique)
3. Ask, "What do you see?"
Which of the following only tests the central 20 degrees of a visual field? - ✔✔amsler grid
What might occur when soft lenses are too tight? - ✔✔Limbal compression (pressure at
corneal periphery)
OSHA does not regulate ________ or ________ medical devices - ✔✔Prescribing
Dispensing
Modifying Factors, Context and Quality are all components of: - ✔✔History of Present Illness
(HPI)
Anisocoria without ptosis suggests: - ✔✔Adie's pupil
4 parts of a prescription - ✔✔1. Inscription: drug name & concentration
2. Subscription: amount dispensed
3. Instruction: route of administration, # of gtts/tablets, frequency
4. Signature
The amount of constriction and redilation of a pupil depends on: - ✔✔the amount of ambient
room light and the brightness of test light
,What antibiotics would you use in a newborn with suspected conjunctivitis? -
✔✔Erythromycin gtts. & Oral erythromycin b/c of concurrent respiratory symptoms kids can
develop (chlamydia infects mucous membranes)
Accomodation, convergence and Pupillary Constriction are evidence of: - ✔✔the near reflex
You do not use ______ or ______ drugs for children - ✔✔Doxy
Fluoroquinolone
The main goal of counseling a patient regarding contact lens care is to: - ✔✔keep the lenses
clean and free of microbes
In refinement, "chasing the white" means you should - ✔✔Add cylinder (+0.25)
Afferent Pupillary Defect (APD) - ✔✔A pupil with normal iris function that fails to constrict
normally with direct light stimulation but reacts strongly consensually when the fellow eye is
stimulated. Usually secondary to optic nerve disease.
Tonic pupil is another name for....(which means?) - ✔✔Adie's pupil (reacts slowly to light &
decreased accommodation for near)
What is the most important step in disinfecting contact lenses? - ✔✔rubbing with a cleaner
Safety limit for number of readings in 1 day on the IOL master - ✔✔20
A contact lens that is too tight will: - ✔✔center well, be comfortable and cause the vision to
fluctuate with blink
, Before starting the color plate test, the patient is shown a sample that is.... - ✔✔Discernible to
normal and abnormal
The patient should look___________when inserting a soft contact lens. - ✔✔up
How does a patient center a soft contact lens after insertion? - ✔✔by blinking
Rose Bengal - ✔✔Red dye which stains and highlights degenerating corneal and conjunctival
cells.
Before beginning manual lensometry it's important to: - ✔✔focus the eye piece
An advantage of Multi Purpose solution is: - ✔✔it's convenient and readily available
Cross Cylinders should be cleaned with: - ✔✔a damp cloth
When checking the blood pressure, systolic pressure is indicated by: - ✔✔the first moment the
heart beat is heard
Macro mode on a camera is indicated by: - ✔✔a flower
Phoropters should be serviced and cleaned every: - ✔✔1 year
Corneal Topography is used for: - ✔✔Contact lens fitting
Monitoring keratoconus
Study Guide
When using an interferometer (do 3 things),.... - ✔✔1. Have pupil well-dilated
2. First used horizontal/vertical lines until acuity is reached (and then use oblique)
3. Ask, "What do you see?"
Which of the following only tests the central 20 degrees of a visual field? - ✔✔amsler grid
What might occur when soft lenses are too tight? - ✔✔Limbal compression (pressure at
corneal periphery)
OSHA does not regulate ________ or ________ medical devices - ✔✔Prescribing
Dispensing
Modifying Factors, Context and Quality are all components of: - ✔✔History of Present Illness
(HPI)
Anisocoria without ptosis suggests: - ✔✔Adie's pupil
4 parts of a prescription - ✔✔1. Inscription: drug name & concentration
2. Subscription: amount dispensed
3. Instruction: route of administration, # of gtts/tablets, frequency
4. Signature
The amount of constriction and redilation of a pupil depends on: - ✔✔the amount of ambient
room light and the brightness of test light
,What antibiotics would you use in a newborn with suspected conjunctivitis? -
✔✔Erythromycin gtts. & Oral erythromycin b/c of concurrent respiratory symptoms kids can
develop (chlamydia infects mucous membranes)
Accomodation, convergence and Pupillary Constriction are evidence of: - ✔✔the near reflex
You do not use ______ or ______ drugs for children - ✔✔Doxy
Fluoroquinolone
The main goal of counseling a patient regarding contact lens care is to: - ✔✔keep the lenses
clean and free of microbes
In refinement, "chasing the white" means you should - ✔✔Add cylinder (+0.25)
Afferent Pupillary Defect (APD) - ✔✔A pupil with normal iris function that fails to constrict
normally with direct light stimulation but reacts strongly consensually when the fellow eye is
stimulated. Usually secondary to optic nerve disease.
Tonic pupil is another name for....(which means?) - ✔✔Adie's pupil (reacts slowly to light &
decreased accommodation for near)
What is the most important step in disinfecting contact lenses? - ✔✔rubbing with a cleaner
Safety limit for number of readings in 1 day on the IOL master - ✔✔20
A contact lens that is too tight will: - ✔✔center well, be comfortable and cause the vision to
fluctuate with blink
, Before starting the color plate test, the patient is shown a sample that is.... - ✔✔Discernible to
normal and abnormal
The patient should look___________when inserting a soft contact lens. - ✔✔up
How does a patient center a soft contact lens after insertion? - ✔✔by blinking
Rose Bengal - ✔✔Red dye which stains and highlights degenerating corneal and conjunctival
cells.
Before beginning manual lensometry it's important to: - ✔✔focus the eye piece
An advantage of Multi Purpose solution is: - ✔✔it's convenient and readily available
Cross Cylinders should be cleaned with: - ✔✔a damp cloth
When checking the blood pressure, systolic pressure is indicated by: - ✔✔the first moment the
heart beat is heard
Macro mode on a camera is indicated by: - ✔✔a flower
Phoropters should be serviced and cleaned every: - ✔✔1 year
Corneal Topography is used for: - ✔✔Contact lens fitting
Monitoring keratoconus
