Abo exam prep part 2 - Study guides, Class notes & Summaries

The basic definition of a prism may be expressed mathematically as: - 1cm/1m=1 prism Prentice's Rule states that the amount of induced prism equals to - Power of the lens times the decentration in millimeters divide by 10 (prism= F x dec (mm) divided by 10) A minus lens gets ________ the closer to the eye. - stronger Axis is _______________________. - a notation of position in relation to the cornea and the corrective lens. Axis notations have no value. Decentering a minus lens outward w...

2024 ABO Exam Prep Part 7 – Instrumentation New Full Exam Questions and Answers ( Included ) 100% Correct 1. Optical instrument used to verify lens from a known Rx as well as neutralizing a lens from unknown Rx Answer: Lensometer 2. Part of a lensometer that must be first adjusted; power drum must be set to0 Answer: Adjustable eyepiece 3. Part of a lensometer that expands the range of the reticle; sometimesmanually attached Answer: Auxiliary prism ring 4. Part of a lensometer that ...

ABO Exam Prep Part 2 Basic Optic Principles QUESTIONS AND ANSWERS

2024 ABO Exam Prep Part 2 - Basic Optic Principles New Full Exam Questions and Answers ( Included ) 100% Correct 1. Radiation type of wavelengths shorter than 400 nm Answer: UV radiation 2. Division of UV radiation ranging from 290-200 nm & is extremely dangerous, absorbed by the ozone layer Answer: UV C 3. Division of UV radiation ranging from 320-290 nm & causing sunburn, corneal burn, retinal damage, & eventually cataracts; mainly absorbed by thecornea & partly the crystalline lens...

UV radiation Radiation type of wavelengths shorter than 400 nm UV C Division of UV radiation ranging from 290-200 nm & is extremely dangerous, absorbed by the ozone layer UV B Division of UV radiation ranging from 320-290 nm & causing sunburn, corneal burn, retinal damage, & eventually cataracts; mainly absorbed by the cornea & partly the crystalline lens UV A Division of UV radiation ranging 400-320 nm & causing suntan & cataracts; primarily absorbed by the crystalline ...

The speed of light is - ANSWER-186,000 miles / second The wavelength of Red is about - ANSWER-660 nanometers (NM) In a minus powered lens light rays ____ and come to a focal point ____ the lens. - ANSWER-Diverge, in front of Light rays pass through a lens and converge at a point 50cm behind the lens, what is the power? - ANSWER-D=1/f D=1/50 D=+2.00 The basic definition of a prism may be expressed mathematically as: - ANSWER-1cm/1m=1 prism The index of refraction is lowest in - A...

ABO Exam prep part 2 With Questions And Answers...

2024 ABO Exam Prep Part 1 - Anatomy and physiology New Full Exam Questions and Answers ( Included ) 100% Correct 1. The extraocular muscles are inserted into the sclera and serve to rotate theeye in all possible directions.There are of these muscles in each eye. a. two b. four c. six d. eight Answer: 2. The fibrous tunic is comprised of the: a. Iris and choroid b. sclera, cornea, and limbus c. Iris, ciliary body and choroid d. retina and optic disk Answer: a, cornea and limbus ...

2024 ABO Exam Prep Part 3 - Lens form and analysis New Full Exam Questions and Answers ( Included ) 100% Correct 1. To determine the power of a thin lens in air, it is necessary to consider: A. front curve and index of refraction B. back curve and index of refraction C. index of refraction only D. front curve, back curve and index of refraction Answer: D.front curve, back curve and index of refraction 2. A standard lens measure is calibrated for an index of refraction of: A. 1.490 B. ...