Certified Ophthalmic Assistant Exam with 100%Correct Answers 2024.
How are systemic medications administered? - Answer Orally,
... [Show More] injection
(subcutaneously or intramuscularly) or intravenously
How should drops be properly instilled into a patient's eye? - Answer Into the lower
cul de sac (lower fornix)
What does the term idiosyncrasy refer to with ophthalmic drugs? - Answer 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? - Answer Lensometer
(Lensmeter)
When recording a prism in a spectacle prescription, what does the abbreviation BO
stand for? - Answer Base out
What is determined by focusing the thin lines in a manual lensometer? - Answer The
sphere of the spectacle prescription
What is the first step in performing lensometry? - Answer Focus the eyepiece
When PRK is being performed, time remaining in the procedure should be
announced in increments of ______ - Answer 10 seconds
Name the organism that is most destructive to the eye. - Answer Pseudomonas
Aeruginosa
What procedure using an Argon Laser is thought to destroy areas of ischemic retina?
- Answer Panretinal photocoagulation or panretinal laser
What type of intraocular injection is made at the Pars plana site with a needle and
syringe of medication? - Answer Intravitreal injection
What are the parallel movements of the eyes from one gaze position to another -
Answer Versions
What is the movement of one eye called - Answer Duction
Versions and ductions are tested by using ________ to test the six pairs of _______
muscles. - Answer Six Cardinal positions, yoke
The movement of the eye outward toward the temple is called _____ - Answer
Abduction
What is the technique used to measure the radius of curvature of the anterior corneal
surface? - Answer A-Scan Keratometry Length Measurements
Certified Ophthalmic Assistant Exam
Keratometry is performed with a device called a ______ - Answer Keratometer or
ophthalmometer
Give three examples in which a Keratometry measurement would be useful. -
Answer Contact lens fitting, refractive surgery, intraocular lens calculations,
keratoconus
Keratometry is measured in _____ - Answer Diopters
Measuring intraocular pressure is also called _____ - Answer Tonometry
The higher the intraocular pressure of an eye, the ____ the eye - Answer Harder
Applanation tonometry displaces less than ____ of aqueous. - Answer 0.5 microliters
When recording intraocular pressure, the reading on the Goldmann applanation
tonometer scale should be multiplied by ____. - Answer 10
Because there are no rods or cones in the optic nerve head a____ blind spot is
created in the normal visual field. - Answer Physiologic
A defect in the patient's superior temporal retina, will affect the patient's ____ field of
vision. - Answer Inferior nasal
The two basic methods employed to map the field of vision are ____ and ____
perimetry. - Answer Kinetic, static
A localized area of reduced sensitivity in a visual field that is surrounded by an area
of greater sensitivity is termed a ____. - Answer Scotoma
And unfocused eyepiece can lead to an error of ____. - Answer 1 diopter in the K
reading
How many meridians are measured in keratometry? - Answer 2 meridians (usually
90° apart)
The average K reading is ____. - Answer 43-44 diopters
Keratometry measures the____ of the anterior curvature of the cornea. - Answer
Central 3.3 mm
The diffusion of oxygen through a contact lens material is referred to as ____. -
Answer 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 - Answer True
Certified Ophthalmic Assistant Exam
Name the instrument used to determine the posterior surface radius of curvature of a
rigid contact lens. - Answer Radiuscope and or Contacto Gauge
Increased thirst, excessive urine, production, increased hunger and weight loss are
characteristics of which endocrine disease? - Answer Diabetes insipidus
What finding can occur 6 to 8 hours after a metallic foreign body enters the cornea? -
Answer Rust ring
Why are alkali burns more serious than acid burns on the cornea? - Answer Alkali
burns penetrate deeper
Variability in the functions of levator and extraocular muscle is characteristic in which
systemic disease? - Answer Myasthenia gravis
What is the name of the mucous membrane covering the interior sclera? - Answer
(Bulbar) Conjunctiva
What type of glaucoma constitutes an ocular emergency? - Answer Acute angleclosure glaucoma
Protocols for pressure patching or shields require that adhesive tape must be applied
from the ____ to the ____. - Answer Bridge of the nose, ear lobe
What is the minimum thickness of safety lenses? - Answer 3.0 mm
What is the name of the important screening process used in emergencies
determine the patient's ocular needs? - Answer Triage
What is a hemorrhage confined to the anterior chamber termed? - Answer Hyphema
____ drugs induce contractions of the iris sphincter - Answer Miotic
Name the three types of ophthalmic preparations placed directly in the eye. - Answer
Solutions, suspensions, ointments
What is the main disadvantage of using an ophthalmic solution? - Answer The
duration of contact with the eye is short, therefore it requires frequent instillation. [Show Less]