Certified Ophthalmic Assistant (COA) Final Exam with Verified Answers

Certified Ophthalmic Assistant (COA) Final Exam with Verified Answers How are systemic medications administered? - CORRECT ANSWER-Orally, injection (subcutaneously or intramuscularly) or intravenously How should drops be properly instilled into a patient's eye? - CORRECT ANSWER-Into the lower cul de sac (lower fornix) What does the term idiosyncrasy refer to with ophthalmic drugs? - CORRECT 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? - CORRECT ANSWERLensometer (Lensmeter) When recording a prism in a spectacle prescription, what does the abbreviation BO stand for? - CORRECT ANSWER-Base out What is determined by focusing the thin lines in a manual lensometer? - CORRECT ANSWER-The sphere of the spectacle prescription What is the first step in performing lensometry? - CORRECT ANSWER-Focus the eyepiece When PRK is being performed, time remaining in the procedure should be announced in increments of ______ - CORRECT ANSWER-10 seconds Name the organism that is most destructive to the eye. - CORRECT ANSWERPseudomonas Aeruginosa What procedure using an Argon Laser is thought to destroy areas of ischemic retina? - CORRECT 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? - CORRECT ANSWER-Intravitreal injection What are the parallel movements of the eyes from one gaze position to another - CORRECT ANSWER-Versions What is the movement of one eye called - CORRECT ANSWER-Duction Versions and ductions are tested by using ________ to test the six pairs of _______ muscles. - CORRECT ANSWER-Six Cardinal positions, yoke The movement of the eye outward toward the temple is called _____ - CORRECT ANSWER-Abduction What is the technique used to measure the radius of curvature of the anterior corneal surface? - CORRECT ANSWER-A-Scan Keratometry Length Measurements Keratometry is performed with a device called a ______ - CORRECT ANSWERKeratometer or ophthalmometer Give three examples in which a Keratometry measurement would be useful. - CORRECT ANSWER-Contact lens fitting, refractive surgery, intraocular lens calculations, keratoconus Keratometry is measured in _____ - CORRECT ANSWER-Diopters Measuring intraocular pressure is also called _____ - CORRECT ANSWER-Tonometry The higher the intraocular pressure of an eye, the ____ the eye - CORRECT ANSWERHarder Applanation tonometry displaces less than ____ of aqueous. - CORRECT ANSWER-0.5 microliters When recording intraocular pressure, the reading on the Goldmann applanation tonometer scale should be multiplied by ____. - CORRECT ANSWER-10 Because there are no rods or cones in the optic nerve head a____ blind spot is created in the normal visual field. - CORRECT ANSWER-Physiologic A defect in the patient's superior temporal retina, will affect the patient's ____ field of vision. - CORRECT ANSWER-Inferior nasal