COA Study Guide Questions and and Answers With Complete Solutions Graded A+

COA Study Guide Questions and and Answers With Complete Solutions Graded A+. Name the nine components of the ophthalmic history. - Answer Chief complaint, present illness, past ocular history, ocular medications, general medical and surgical history, systemic medications, allergies, social history, and family history. Why is it important to specifically ask a patient about the medications they are taking? - Answer Because certain medications may affect the eyes. What is the proper response to a patient's request from the ophthalmic technician for medical advice or a diagnosis? - Answer Refer the patient to the ophthalmologist What is the term used for the reason for the patient's visit? - Answer Chief complaint What elements are important in social history taking? - Answer Smoking, alcohol, and drug use Prior use of topical ocular pharmaceutical agents is part of a patient's ________. - Answer Past ocular history Pertinent family history of a patient should include which relatives? - Answer Parents, grandparents, and genetic siblings A patient describing an experience of getting hives after taking sulfa drugs is providing information about __________. - Answer An allergic reaction What is the term for the spasmodic, rhythmic dilating, and contracting pupillary movements during pupil function testing? - Answer Hippus What is the name of the test used for detecting a relative afferent pupillary defect? - Answer Swinging flashlight test Which muscle of the iris constricts in bright light? - Answer Sphincter What is pupil dilation termed? - Answer Mydriasis What is the term used when there is a difference in pupil size? - Answer Anisocoria What is pupillometry? - Answer The measurement of pupillary diameters. What is the name of the reflexive reaction that occurs when a light is directed into one pupil and the pupil of the opposite eye simultaneously reacts - Answer Consensual pupillary reaction Calibration of the applanation tonometer should be checked approximately every _____ months. - Answer Two (or sooner with regular use) When cleaning the goniolens, what is uses to rinse off the methycellulose? - Answer Warm running water COA Study Guide With Complete Solutions Graded A+ When replacing a light bulb _____ can diminish its effectiveness and life. - Answer Oil from fingers Diagnostic lenses that contact the eye can be sterilized using? - Answer Ethylene Oxide gas How should the removable glass slides inside the American Optical acuity projector be cleaned? - Answer Wipe with clean, soft lint-free towel or photographic lens paper If dust accumulates on the mirror of the slit lamp, the technician may clean it by using what cleaning methods? - Answer A lint-free cloth, a lens brush, or a blast of air Who should repair and maintain equipment such as a laser? - Answer A qualified service technician. Which accessories are used to check the calibration of an ophthalmometer/keratometer? - Answer Three test balls made of steel also called "Lensco Meter" What should be used to clean the accessible lenses of a phoropter? - Answer Photographic lens cleaner and lens tissue What size letters (optotypes) are typically used to calibrate visual acuity projectors? - Answer 20/200 What is the name of the instrument used to neutralize lenses? - Answer Lensometer (Lensmeter) When recording prism in a spectacle Rx, 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 Rx is determined by the thin lines. What is the first step in performing lensometry? - Answer Focus the eyepiece. If you cannot center the thick and thin lines in the lensometer, the lens has _______. - Answer Ground-in prism. Each black ring seen in the lensometer eyepiece reticle measures how much prism? - Answer 1 diopter for each ring When performing lensometry, what is indicated if both thin and wide lines are in focus at the same time? - Answer The lens is spherical. What is the technique used to measure the radius of curvature of the anterior corneal surface? - Answer A-Scan Keratometry Length Measurements COA Study Guide With Complete Solutions Graded A+ 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, intra ocular lens calculations, keratoconus Keratometry is measured in _______. - Answer Diopters An 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 degrees apart) The average K reading is _____. - Answer 43 to 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 diagnostic lens on the eye is the best way to fit a contact lens. - Answer True Name the instrument used to determine the posterior surface radius of curvature of the rigid contact lens? - Answer Radiuscope and or Contacto Gauge Name three reasons to dispense a therapeutic bandage contact lens. - Answer To protect cornea from eyelids and eyelashes, to promote corneal healing, to provide comfort, to stop wound leaks, to improve vision, or for drug delivery. Name two measurements required to fit a contact lens. - Answer Refraction and Kreading (keratometry) Overwear of contact lenses may result in insufficient oxygen to the cornea called _______. - Answer Hypoxia Ophthalmia What are Ethics? - Answer Moral Principles and values that govern individual behavior What must ophthalmic medical assistants abide by? - Answer The laws of the state in which their employer practices and under the service of a licensed ophthalmologist Attempting to work independently of an ophthalmologist is considered _______. - Answer Practicing medicine without a license