Certified Ophthalmic Assistant (COA) 640 Questions with Complete Solutions

Certified Ophthalmic Assistant (COA) 640 Questions with Complete Solutions 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 Answer Lensometer (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 Answer Pseudomonas 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