Polarized lenses - Study guides, Class notes & Summaries

Centrifuges (4) #1- Table top centrifuges are used in clinical labs to separate cells from serum or plasma. #2- Micro-centrifuges are small centrifuges used for small plastic conical containers with an integral snap cap. #3- High speed centrifuges reach speeds b/w 17,000 & 30,000 rpm. #4- Ultra Centrifuges are high speed centrifuges (15,000 rpm). Small air-driven to separate chylomicrons from serum. Pipettes types (3) 1. Automated pipettes 2. semi-automated micro-pipettes 3. Glass ...

a lens focal length may be altered by? - changing the curvature of one surface what controls the amount of light that enters the eye? - Iris lights changing direction as it passes from one medium to another is called what? - refraction meniscus, equiconcave and flat concave are all, what? - minus lenses what term is used to describe the eyes tendency to TURN from its normal position? - phoria refractive condition where light focuses directly ON the retina...? - emmetriopia one convex and o...

ABO (222/2023) Rated A+ The ability of the eye to focus on objects at different distances Accommodation Fresnel optics Press on prism Frame material that resist stretching with heat Nylon Bridge type that spreads weight over the greatest area Saddle Amount of jump image is not affected by The seg inset Double vision Diplopia Modern AR coated lenses transmit how much light 99.5% Shortest wavelength Violet The condition where Rays of light focus behind the retina Hyperopia Condition where...

ABO ADVANCE STUDY GUIDE AND CORRECT SOLUTIONS 2023/2024 LATEST When taking seg height measurements, which of the following situations could result in a parallax error? - CORRECT ANSWER-Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - CORRECT ANSWER-Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - CORRECT ANSWER-Lens power in the 180 degree meridi...

Optician Practical Exam Study Material Complete Questions And Answers 2023 A lens focal length may be altered by? changing the curvature of one surface What controls the amount of light that enters the eye? iris Lights changing direction as it passes from one medium to another is called what? refraction Meniscus, equiconcave and flat concave are all, what? minus lenses What term is used to describe the eyes tendency to turn from its normal position? phoria Refractive condition wh...

ABO Practice Test Questions and Answers Already Passed Corpuscular the theory which explains light as a stream of invisible bundles of energy Photons the visible bundles of energy Electromagnetic Theory The theory which explains light as moving in a series of wave pulsations. 186,000 miles per second the speed of light in air ray a point of light pulsating in a straight line all colors the colors that visible or white light are composed of base a prism will bend light towards its one me...

When taking seg height measurements, which of the following situations could result in a parallax error? - Patient sitting/ dispenser standing erect Which of the following is not significant in identifying the problem of vertical imbalance? - Patient's age Which of the following elements is NOT critical when determining vertical imbalance? - Lens power in the 180 degree meridian A prism will displace the object being viewed towards its ________. - Apex A prism will bend light toward...

ABO Practice Test Questions and Answers 2023 With Complete Solution To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel - CORRECT ANS c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis - CORRECT ANS d) A lens location of zero deviation o...

To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel - Answer- c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis - Answer- d) A lens location of zero deviation of the optical axis The progressive power lens has a progressive zone after where pow...

To mount a lens in a nylon suspension type frame, it would be necessary to _______ the lens. a) Drill b) Notch c) Groove d) V-Bevel - CORRECT ANS c) Groove The optical center of a lens is: a) At the geometrical center b) One the 180 line c) At the point where the "a" and "b" measurement meet d) A lens location of zero deviation of the optical axis - CORRECT ANS d) A lens location of zero deviation of the optical axis The progressive power lens has a progressive zone after where...