Plus lenses are Study guides, Class notes & Summaries

ABO ADVANCE QUESTIONS AND ANSWERS >> 2024 VERSION 100% ACCURATE The amount of reflection of each surface of CR-39 lenses is approximately - 4% The absorption of light in lenses is classified by two variables. What are they? A. base curve and thickness B. index of refraction and thickness C. thickness and lens transmission D. tint and lens transmission - D. tint and lens transmission The denser the tint in a lens A. the greater the transmission of light through the l...

TEST BANK Full Test Bank For ABO (American Board of Opticianry) Exams/Practice Test/ Questions and Answers /2024 Guarantee Pass Guide ABO Practical Questions 2 ABO Latest Test 10 ABO EXAM PRE-TEST 14 ABO Exam Questions and Answers 35 ABO PRACTICE EXAM 41 ABO Practice Exams Questions and Answers 43 ABO REVIEW Questions Answered 100% Correct 65 ABO Practice Test 69 ABO Exam Prep Solved 10% Correct Questions and Answers 84 ABO Study Guide Questions and Answers 91 ABO Practical Exam 97 ...

NCLE Practice Test 100% Correct Solved A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - Correct Answer ️️ -d) have the ability to reproduce Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - Correct Answer ️️ -a)-4...

NCLE Study Guide Questions with Correct Answers Back Surface Power - Answer-Effective power of a lens when measured from the back surface. Back Surface Toric Lens - Answer-A lens in which the posterior surface has two different radii and the anterior surface is spherical. Ballasted Lens - Answer-A lens with a heavier base which becomes oriented inferiorly or downward when the lens is worn. Bicurve Lens - Answer-A contact lens which contains two curves: one base curve and one secondar...

A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - ANSWER d) have the ability to reproduce Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - ANSWER a)-4.50 +1.00 x75 When a keratometer is being calibrated, which of ...

NCLE Test Questions And Answers Latest Update 2023/2024 (Graded A+). Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - Answer a)-4.50 +1.00 x75 When a keratometer is being calibrated, which of the following targets will provide the most reliable result? a)the single-cut anterior surface of a high-plus lens b)a perfectly flat highly polished mirror c) a set of steell balls of known r...

A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - d Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - a When a keratometer is being calibrated, which of the following targets will provide the most reliable result? ...

When discussing thick lenses, the factors which are considered in computing the lens power are: a. front curve, thickness and index b. back curve, thickness and index c. front curve, back curve and thickness d. front curve, back curve, thickness and index - ANSWER-d. front curve, back curve, thickness and index Toric transposition shows: a. lens thickness b. power in principal meridians c. the power of the ADD d. the lens diameter - ANSWER-b. power in principal meridians Increa...

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

optic zone - ANSWER-the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius - ANSWER-this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. steeper base curve - ANSWER-occurs when the posterior radius of curvature is decreased ...