Opticia - Study guides, Class notes & Summaries

Math for ABO test Latest Questions and Answers(American Board of Opticianry (ABO) A Box: 53 DBL: 15 ED: 55 PD: 30/32 OD: 68/2 =34 OS: 68/2=34 What is the MBS for the rt and left lens? {Answer: - OD: 68/2 =34 OS: 68/2=34 Decentration: Frame PD- PT PD OD: 34-30=4 decentered OS: 34-32= 2 decentered OD: MBS=ED+(2xDecenter)+2 MBS=55+ 8 (2x4)+2=65mm OS: MBS=ED+(2x decenter)+2 MBS=55+4 (2x2)+2=61mm OD-65mm blank OS: 61MM blank What is Prentice rule used for? {Answer: - To (Power x di...

To widen the distance between the pads of a frame or mounting, bent the pad arms: - Outward/Angle the temples upward from the end pieces. A reverse slab-off is molded with base _____ prism in the near portion of the lens. - Down Multifocal height is usually determined by measuring from the: - Lower edge of the lens. If the pad arms are lengthened, this adjustment will: - Push the front out more. A semi-rimless mounting consists of: - A center piece with lens bars connecting the end p...

ABO study-Optician 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 f...

OPTICIAN ABO LESSON 1-12

Amblyopia is frequently treated with? - Answer-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 __________ ? - Answer-Mixed Astigmatism Visual acuity in not affected by _________ ? - Answer-Interpupillary distance In near sighted eye, incident rays of light form an image __________ ? - Answer-Anterior to the retina The tendency of an eye to dev...

ABO Exams (American Board of Opticianry Exams) Questions With Complete Solutions Which of the following is a usual way of ordering the lenses? A. OU -4.50 4BD and 2BO B. OD -4.50 2BD 1BO OS -5.00 2BU 1BO C. OD -4.50 4BD OS -5.00 2BO D. OD -4.50 2BD 1BO OS -5.00 2BD 1BO [Correct Ans: - OD -4.50 2BD 1BO OS -5.00 2BU 1BO Which of the following is recommended for children's bridge? A. Saddle B. Keyhole C. Adjustable pads D. Golden gate [Correct Ans: - Keyhole A frame fits p...

ABO (American Board of Opticianry) Exam Latest Questions With Complete Solutions Change a bifocal Rx to a single vision Rx [Ans: - Add the bifocal power to the sphere powers. OD: -0.50 OS: -0.25-0.25x172 Add: +1.75 Turns into- OD: +1.25 OS: +1.50-0.25x172 Anisometropia [Ans: - There is a difference of 3 diopters between both eyes; when the vision of the eyes differs by a large margin. Antimetropia [Ans: - Refers to Rx's that differ in sign. Ex. OD: +0.25 OS: -0.75 Simple H...