Lenses in eyeglass - 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...

The FDA (Food and Drug Administration) - ANSWER-? classifies lens material by how much water is in it and by the electronic charge. The water is either low or high, and percentages are given. The electronic charge is indicated with ionic or non-ionic. The materials are in four groups as follows: The FDA classifies lens material by four groups as follows: - ANSWER-Group 1-low water < 50% water, non-ionic polymers (this group includes silicone hydrogel polymers) Group 2- high water > ...

ABO Practical Latest Version Already Passed Single Vision corrects for one distance Multifocal Corrects with two or more prescriptions (or 'powers') Bifocal lens having two focus strengths Trifocal pertaining to having three focus strengths Calculating Prismatic Effects obtained at the center of an optical lens by producing a difference in edge thickness, either by grinding the back surface at an angle to the front surface during lens surfacing or, if the lens has sufficient power, de-cent...

CPSS Exam 96 Questions with Verified Answers Visual Acuity - CORRECT ANSWER the numerical value associated with the smallest objects the patient can see on specific eye charts at a specific distance. -cornerstone of the eye exam External Exam - CORRECT ANSWER Consists of 3 segments: -Confrontation Visual Field -ExtraOcular Motility -Pupil Evaluation Confrontation Visual Field (CVF) - CORRECT ANSWER Obtains a gross measurement of the patient's peripheral vision. It is useful in...

Which of the following is a true statement about dependent coverage on group health policies? Select one: a. The dependent can be a natural child, step child or adopted child. b. A child can be considered dependent after age 19 if he/she was disabled before that time. c. A child can be considered dependent after 19 if a full time student. d. All of the above: A dependent can be any of those listed. Usually coverage lasts until they reach 19, but if the child was mentally or physically di...

NCLE Study Guide with latest updated test. The FDA (Food and Drug Administration) - correct answer.? classifies lens material by how much water is in it and by the electronic charge. The water is either low or high, and percentages are given. The electronic charge is indicated with ionic or non-ionic. The materials are in four groups as follows: The FDA classifies lens material by four groups as follows: - correct answer.Group 1-low water < 50% water, non-ionic...

The only eye care professional who is a medical doctor is a. Optometrist b. Ocularist c. Ophthalmologist d. Orthoptist C Of the following, the eye care professional who routinely fills prescriptions for eyeglasses is the a. Ocularist b. Optician c. Ophthalmic medical technician d. Orthoptist B A patient in need of a prosthetic eye should be referred to an a. Ocularist b. Optician c. Orthoptist d. Optometrist A An ophthalmologist who concentrates on one a...

PSI - NY Life, Accident and Health Practice Exam 17-55, Just my cards + 199+ 75 GRADED A+ 401k - Tax Sheltered Annuities - CORRECT ANSWER--A 401(k) plan is a taxadvantaged, defined-contribution retirement account offered by many employers to their employees. It is named after a section of the U.S. Internal Revenue Code. Workers can make contributions to their 401(k) accounts through automatic payroll withholding, and their employers can match some or all of those contributions. The ...

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General FMCSA Information (Module 1)fully solved 2023A driver is returning to work from an alcohol rehab program. Who should evaluate the driver and make recommendations on education, treatment, follow up testing, and aftercare? - correct answer Substance Abuse Professional A 62 y/o woman is seen for a recertification. She is a smoker and has osteoarthritis, treated with Mobic, 15mg/day. On exam she has cervical ROM limited to 15o. She has a note from her doctor that she may drive a truck but...