Certified Ophthalmic Assistant (COA) questions with correct answers

How are systemic medications administered? Answer Orally, 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