IJCAHPO Certified Ophthalmic Technician (COT) Certification Examination Questions With Correct Solutions

What is NOT important when documenting the history of an ocular injury? - ANS presence of others when the injury occurred Which one of the following ocular conditions will LEAST likely present in a patient's family history? - ANS conjunctivitis When evaluating a patient for cataract surgery, which of the following systemic illnesses is LEAST important? - ANS urinary incontinence Which symptoms might suggest angle-closure glaucoma? - ANS rainbow colored halos around lights what is the correct interpretation of 1gtt tid OU - ANS one drop to both eyes three times a day A history of corticosteroid use of LEAST importance when ascertaining which condition? - ANS macular degeneration A visual acuity of 20/200 obtained at a distance of 4 feet should be recorded as - ANS 4/200 If a patient's visual acuity measures 20/70 with correction and pinholes to 20/25, which of the following is MOST likely? - ANS the patient needs distance correction the lines of optotypes are what size in comparison to entire optotype - ANS 1/5 Reduced visual acuity without any detectable organic cause is referred to as - ANS amblyopia A 55-year-old patient has worn glasses since childhood. Without glasses, the uncorrected vision improves when looking through an occluder with perforation. This phenomenon is know as the - ANS pinhole effect What is the metric equivalent of 20/40 visual acuity? - ANS 6/12 Dynamic visual acuity refers to - ANS kinetic or moving vision Measuring visual acuity with a potential acuity meter is useful for patients with - ANS cataracts Near vision charts should be held how many inches from the eye? - ANS 14-16 If poor vision is simply due to refractive error, the acuity should improve with use of a(n) - ANS pinhole disc What is the recommended distance for assessing visual acuity? - ANS 20' If a person can clearly see an object at 20 feet that can be seen at 60 feet by a person with no refractive error, their visual acuity is said to be - ANS 20/60 If a patient is unable to distinguish the largest letter on a Snellen chart, the assistance should - ANS determine if the patient can count fingers at a given distance In visual assessment, an infant would be expected to reach for toys by the age of - ANS 4-6 months The visual defect in which there is a complete type of nerve fiber bundle defect emanating from the blind spot, arching over central fixation, and ending on the horizontal line is a - ANS Bjerrum scotoma Homonymous congruous visual field defects with macular sparing are located in what part of the visual pathway? - ANS occipital cortex The normal visual field is determined by the size of the test object employed and the distance at which the test was made. With a 3 mm white target on the perimeter of a 330-degree radius, the average peripheral limit is about - ANS 95 degrees outward, 75 degrees downward, 60 degrees inward and 60 degrees upward What type of patient generally requires a threshold 24-degree central field test? - ANS glaucoma the MOST widely used method of visual field screening, requiring no special equipment, is - ANS confrontation testing Scotomas located immediately nasal or temporal to fixation are known as - ANS paracentral The purpose of the swinging flashlight test is to compare - ANS direct response in the stimulated eye and the consensual response in the other eye In ordinary room light, the diameter of the normal adult pupil is - ANS 3-5 mm A difference in pupil size is referred to as - ANS anisocoria The presence of an afferent pupillary defect may be caused by - ANS optic nerve disease Consensual light reflex in the right eye results in - ANS right pupil constriction What is the term of the state of pupillary constriction? - ANS miosis Which test compares the direct and consensual responses to the pupil? - ANS swinging flashlight