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![NCLE Practice Test | Questions And Answers | 2023 Verified Updates](/docpics/642b5a01c312f_2550284.jpg)
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NCLE Practice Test | Questions And Answers | 2023 Verified Updates
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NCLE Practice Test | Questions And Answers | 2023 
Verified Updates 
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) 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 a)-4.50 +1.00 x75 
Wh...
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![NCLE Prep Exam 3 of 4 | with COMPLETE SOLUTION](/docpics/630fa168964a8_1931682.jpg)
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NCLE Prep Exam 3 of 4 | with COMPLETE SOLUTION
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The tolerance for the overall lens diamter according to the ANSI standards is: 
A. +/-0.005mm 
B. +/-0.05mm 
C. +/-0.01mm 
D. +/-0.1mm - B. 
According to the ANSI standards (Z80.2-1989), the tolerance for the overall diameter of a contat 
lens is +/-0.05mm. ANSI standards have been developed to maintain quality in the contact lens 
industry. It is important to have an understanding of the ANSI guidelines. 
All of the following will enable the practitioner to verify the overall rigid gas permeabl...
![NCLE Prep Exam 3 of 4 | with COMPLETE SOLUTION](/docpics/630fa0f2217e6_1931680.jpg)
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NCLE Prep Exam 3 of 4 | with COMPLETE SOLUTION
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The tolerance for the overall lens diamter according to the ANSI standards is: 
A. +/-0.005mm 
B. +/-0.05mm 
C. +/-0.01mm 
D. +/-0.1mm - B. 
According to the ANSI standards (Z80.2-1989), the tolerance for the overall diameter of a contat 
lens is +/-0.05mm. ANSI standards have been developed to maintain quality in the contact lens 
industry. It is important to have an understanding of the ANSI guidelines. 
All of the following will enable the practitioner to verify the overall rigid gas permeabl...
![NCLE Advanced Certification Exam with COMPLETE SOLUTION | 459 Questions with 100% Correct Answers](/docpics/630fa0794270d_1931676.jpg)
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NCLE Advanced Certification Exam with COMPLETE SOLUTION | 459 Questions with 100% Correct Answers
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The answer is D. 
The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas 
permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it 
is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by 
changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing 
its edge design. - 1. The sagittal depth of a rigid gas permeable contact lens can...
![NCLE exam prep with COMPLETE SOLUTION | 55 PAGES](/docpics/630f9fc7c25d9_1931670.jpg)
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NCLE exam prep with COMPLETE SOLUTION | 55 PAGES
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optic zone - - - the central portion of a contact lens which contains the refractive power and 
generally corresponds to the central corneal cap 
posterior apecal radius - - - 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 - - - occurs when the posterior radius of curvature is decreased (i.e. 8.4 ...
![NCLE Prep Exam Part 1 of 4 | with COMPLETE SOLUTION](/docpics/630f9f5399c2a_1931662.jpg)
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NCLE Prep Exam Part 1 of 4 | with COMPLETE SOLUTION
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Which of the following medications may affect successful contact lens wear? 
A. Antacids 
B. Antihistamines 
C. Aspirin 
D. Laxatives - B. Antihistimines 
Which term refers to a sensitivity to light? 
A. Prebyopia 
B. Photophobia 
C. Pannus 
D. Ptosis - B. Photophobia 
The following is an example of what type of astigmatism? 
K's 42.50 @ 180 / 40.50 @ 90 
A. With the Rule Astigmatism 
B. Lenticular Astigmatism 
C. Against the Rule Astigmatism 
D. Irregular Astigmatism - C. Against the Rule Asti...
![NCLE Advanced Exam Questions (265) with 100% Correct Answers](/docpics/630fa03d4269a_1931674.jpg)
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NCLE Advanced Exam Questions (265) with 100% Correct Answers
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Which of the following medications may affect successful contact lens wear? 
a. antacids 
b. antihistamines 
c. aspirin 
d. laxatives - antihistamines 
Which term refers to a sensitivity to light 
A.presbyopia 
B.Photophobia 
C.Pannus 
D. Ptosis - Photophobia 
The following is an example of what type of astigmatism? 
K's 42.50 @180 /40.50 @90 
A. with the rule 
B. Lenticular astigmatism 
C.Against the rule 
D. Irregular astigmatism - Against the rule astigmatism 
The cornea receives nutrients f...
![NCLE Test Questions with COMPLETE SOLUTION](/docpics/630f9ed958bab_1931656.jpg)
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NCLE Test Questions with COMPLETE SOLUTION
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Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by 
the use of thea. profile analyzer 
b. shadow graph 
c. keratometer 
d. burton light - a. profile analyzer 
Contact lens power should be specified ina. back vertex power 
b. sphero-cylinder power 
c. power in situ 
d. posterier apical radius - a. back vertex power 
The slit-lamp illumination that gives an overall view of the cornea but limits detail isa. sclerotic scatter 
b. diffuse 
c. specular r...
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