Certified Ophthalmic Assistant Exam with 100%Correct Answers 2024.

Certified Ophthalmic Assistant Exam with 100%Correct Answers 2024. 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 Name the organism that is most destructive to the eye. - Answer Pseudomonas Aeruginosa What procedure using an Argon Laser is thought to destroy areas of ischemic retina? - 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? - Answer Intravitreal injection What are the parallel movements of the eyes from one gaze position to another - Answer Versions What is the movement of one eye called - Answer Duction Versions and ductions are tested by using ________ to test the six pairs of _______ muscles. - Answer Six Cardinal positions, yoke The movement of the eye outward toward the temple is called _____ - Answer Abduction What is the technique used to measure the radius of curvature of the anterior corneal surface? - Answer A-Scan Keratometry Length Measurements Certified Ophthalmic Assistant Exam 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, intraocular lens calculations, keratoconus Keratometry is measured in _____ - Answer Diopters Measuring intraocular pressure is also called _____ - Answer Tonometry The higher the intraocular pressure of an eye, the ____ the eye - Answer Harder Applanation tonometry displaces less than ____ of aqueous. - Answer 0.5 microliters When recording intraocular pressure, the reading on the Goldmann applanation tonometer scale should be multiplied by ____. - Answer 10 Because there are no rods or cones in the optic nerve head a____ blind spot is created in the normal visual field. - Answer Physiologic A defect in the patient's superior temporal retina, will affect the patient's ____ field of vision. - Answer Inferior nasal The two basic methods employed to map the field of vision are ____ and ____ perimetry. - Answer Kinetic, static A localized area of reduced sensitivity in a visual field that is surrounded by an area of greater sensitivity is termed a ____. - Answer Scotoma And 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° apart) The average K reading is ____. - Answer 43-44 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 a diagnostic lens on the eye is the best way to fit a contact lens - Answer True Certified Ophthalmic Assistant Exam Name the instrument used to determine the posterior surface radius of curvature of a rigid contact lens. - Answer Radiuscope and or Contacto Gauge Increased thirst, excessive urine, production, increased hunger and weight loss are characteristics of which endocrine disease? - Answer Diabetes insipidus What finding can occur 6 to 8 hours after a metallic foreign body enters the cornea? - Answer Rust ring Why are alkali burns more serious than acid burns on the cornea? - Answer Alkali burns penetrate deeper Variability in the functions of levator and extraocular muscle is characteristic in which systemic disease? - Answer Myasthenia gravis What is the name of the mucous membrane covering the interior sclera? - Answer (Bulbar) Conjunctiva What type of glaucoma constitutes an ocular emergency? - Answer Acute angleclosure glaucoma Protocols for pressure patching or shields require that adhesive tape must be applied from the ____ to the ____. - Answer Bridge of the nose, ear lobe What is the minimum thickness of safety lenses? - Answer 3.0 mm What is the name of the important screening process used in emergencies determine the patient's ocular needs? - Answer Triage What is a hemorrhage confined to the anterior chamber termed? - Answer Hyphema ____ drugs induce contractions of the iris sphincter - Answer Miotic Name the three types of ophthalmic preparations placed directly in the eye. - Answer Solutions, suspensions, ointments What is the main disadvantage of using an ophthalmic solution? - Answer The duration of contact with the eye is short, therefore it requires frequent instillation What is the disadvantage of using an ophthalmic ointment? - Answer The ointment reduces vision by creating a greasy film over the surface of the cornea, and is best used at bedtime. Gross evaluation of the patient's peripheral vision can be accomplished with ____ visual field testing. - Answer Confrontation.