Certified Ophthalmic Assistant (COA) And Answers

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