ABO study-Optician Study Questions And Answers

Amblyopia is frequently treated with? - Occluder Lenses When light entering the eye, without corrective lenses, comes to a focus partially in front of the retina and partially back of the retina, the patient's refractive error is __________ ? - Mixed Astigmatism Visual acuity in not affected by _________ ? - Interpupillary distance In near sighted eye, incident rays of light form an image __________ ? - Anterior to the retina The tendency of an eye to deviate from its normal position is called _______? - Phoria The human eye is held in place by how many small muscles? - Six When the eye is in the relaxed state, the greatest refraction occurs at the ______? - Front surface of the cornea If the eyewires touch the cheeks, the adjustment to take care of this condition would be: - Decrease pantoscopic tilt When light entering the eye, without corrective lenses, come to a focus in front of the retina, the patient's refractive error is: - Myopia What is the first thing to consider when fitting a frame to a patient's face? - Width of the frame What should you do when a consumer comes in and complains of severe eye pain? - Refer the consumer to their eye doctor It is generally an accepted procedure to fit the top of the trifocal segment to the _____? - Bottom edge of pupil A consumer complains that his old eyeglasses give him better visual acuity than his new glasses (same Rx). What should the optician do? - Check the vertex distance and base curve In which of the following cases should you consult the refractionist about the Rx: A. new Rx: +2.00-1.00x90 i.+1.75-1.25x90 old Rx: +2.25-1.00x90 OU B. new Rx: +2.00-1.00x90 i. +0.75-1.25x90 old Rx: -2.25-1.00x90 -1.00-1.00x90 C. new Rx: 4.0^BD OS 2.0^BU OD old rx: 2.0^BD OS D. new rx: -2.00-1.00x90 -0.75-1.25x90 old rx: -2.25-1.00x90 -1.00-1.00x90 - B. new Rx: +2.00-1.00x90 i. +0.75-1.25x90 old Rx: -2.25-1.00x90 -1.00-1.00x90 When a frame is said to have a parabolic curve, (positive face form), the following condition is meant ______? - The bridge of the frame is further out than the end pieces Which of the following is a patient "want" in relation to a new pair of eyeglasses they are buying? A. clear vision from the eyewear B. accurate PD C. proper temple fit D. fashionable frame - D. Fashionable Frame When viewing the wearer from the front, it is discovered that the frame sits too far to the left (wearers right) on the wearers face. This is caused by: - Both pads are shifted to the wearers left Why is it important to fit a frame comfortably at the time of delivery? - If uncomfortable, the patient will stop wearing it When adjusting the frame, the front can be lowered by using the following adjustment: - By spreading the nose pads further apart Why is it easier to obtain "needs" information than it is "wants" information? - Most people don't know what they want The reading Rx for a -4.25-1.25x90, +2.00 add is: - -2.25-1.25x90 Which of the following occupations would be best suited with double segment occupational lenses? a. accountant b. electrician c. teacher d. lawyer - b. electrician Photochromic lenses will be darkest on which day? a. warm bright day b. cold bright day c. cloudy warm day d. cloudy cold day - b. cold bright day "Bowing" temples is an expression referring to: - curving temples around the head ANSI X80.1 recommendation for the Rx opthalmic lenses allows tolerance for power sphere of: - 0.00-6.50 = +/- 0.13D Above 6.50 = +/- 2% When a frame is said to have pantoscopic tilt, the following condition is meant: - The bottoms of the eyewires are in closer than the top According to ANSI standards, basic Rx safety lenses shall not be less than _____________ - 3.0mm The tolerance for the lens thickness when specified for special Rx purpose is: - 0.3mm The tolerance of the cylinder axis of the right lens is: Rx: +2.00+2.00x90 +3.00+1.00x90 +2.00 FT-28 - 2 degrees A pupilometer is used to measure the _________ - Interpupillary distance Prior to the adoption of the Prescription Release Rule, it was not ___________ for the prescribing eye doctor to give the consumer the Rx. - mandatory If the lensometer mires cannot be centered in the central portion of the lensometer target, the lens probably contains: - prism Where will the optical center appear in a lensometer when neutralizing a right lens for base down prism? - Below the target center Which is not a possible solution for the frame sitting too high on the face? a. stretch the bridge (plastic) b. spread the nose pads c. bend the guard arms down and readjust the vertical pad angle d. choose a different frame - c. bend the guard arms down and readjust the vertical pad angle A retinascope is used to: - measure refractive error The patient's Rx -2.00-0.50x120 Add +3.00 with 50% trifocal. The Rx through the intermediate portion of the trifocal will read: - -0.50-0.50x120 The instrument that provides information on the patients refractive status by reflecting light off the retina is? - Retinoscope