Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

NCLE Practice Test Correct Questions & Answers Verified 100%, Exams of Nursing

West Virginia University (WVU)Nursing

A practice test or study guide for the national contact lens examiners (ncle) exam. It covers a variety of topics related to contact lens fitting, materials, and care, including questions on hydrogen peroxide disinfection, astigmatism, refractive errors, contact lens parameters, corneal anatomy and physiology, and contact lens solutions. Detailed explanations and answers to multiple-choice questions, making it a potentially valuable resource for students or professionals preparing for the ncle exam or seeking to expand their knowledge of contact lens-related topics. The comprehensive nature of the content and the focus on practical, exam-oriented questions suggest this document could be useful as study notes, lecture notes, or a summary for those studying to become contact lens practitioners.

Typology: Exams

2023/2024

Available from 08/12/2024

ShantelleG
ShantelleG 🇺🇸

4.8

(6)

2.8K documents

1 / 7

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
NCLE Practice Test Correct Questions &
Answers Verified 100%
Hydrogen peroxide care systems:
A. Should not be used to disinfect FDA group IV lenses.
B. Is more effective against viruses and fungi than most chemical disinfection systems.
C. Does not require a red tip on its container, since it does not cause permanent
damage if accidental.
D. Takes a minimum of 2 hours to be decomposed into water and oxygen. - ANSWER
B. Is more effective against viruses and fungi than most chemical disinfection systems.
In against the rule astigmatism, the steepest corneal meridian:
A. Is at or near 45 degrees
B. Is at or near 90 degrees
C. Is at or near 135 degrees
D. Is at or near 180 degrees - ANSWER D. Is at or near 180 degrees.
The following RX represents:
OD: +2.00 PSH= 20/20
OS: -3.00-2.00x180 = 20/20
A. Amblyopia
B. Anisometropia
C. Aniseikona
D. Emmetropia - ANSWER C. Anisometropia
Tom's spectacles with a power of -12.00+0.50 x 090, sit 10 mm in front of his cornea.
The likely soft Contact lens prescription for Tom would be?
A. -12.50 D
B. -12.00 D
C. -11.75 D
D. -10.50 D - ANSWER D. -10.50 D
Given the following refraction and K readings, select the correct base curve and power
recordings-
K's 44.00 @180 / 41.00 @ 90
RX: -1.00-3.00X090
A. 41.00 / 44.00 | -1.00 / -3.00
B. 41.00 / 44.00 | -1.00 / -4.00
C. 41.00 / 44.00 | -4.00 / -1.00
D. 44.00 / 41.00 | -1.00 / -3.00 - ANSWER B. 41.00 / 44.00 | -1.00 / -4.00
What is the average pH value of a human tear? - ANSWER 7.4
pf3
pf4
pf5

Partial preview of the text

Download NCLE Practice Test Correct Questions & Answers Verified 100% and more Exams Nursing in PDF only on Docsity!

NCLE Practice Test Correct Questions &

Answers Verified 100%

Hydrogen peroxide care systems: A. Should not be used to disinfect FDA group IV lenses. B. Is more effective against viruses and fungi than most chemical disinfection systems. C. Does not require a red tip on its container, since it does not cause permanent damage if accidental. D. Takes a minimum of 2 hours to be decomposed into water and oxygen. - ANSWER B. Is more effective against viruses and fungi than most chemical disinfection systems. In against the rule astigmatism, the steepest corneal meridian: A. Is at or near 45 degrees B. Is at or near 90 degrees C. Is at or near 135 degrees D. Is at or near 180 degrees - ANSWER D. Is at or near 180 degrees. The following RX represents: OD: +2.00 PSH= 20/ OS: -3.00-2.00x180 = 20/ A. Amblyopia B. Anisometropia C. Aniseikona D. Emmetropia - ANSWER C. Anisometropia Tom's spectacles with a power of -12.00+0.50 x 090, sit 10 mm in front of his cornea. The likely soft Contact lens prescription for Tom would be? A. -12.50 D B. -12.00 D C. -11.75 D D. -10.50 D - ANSWER D. -10.50 D Given the following refraction and K readings, select the correct base curve and power recordings- K's 44.00 @180 / 41.00 @ 90 RX: -1.00-3.00X A. 41.00 / 44.00 | -1.00 / -3. B. 41.00 / 44.00 | -1.00 / -4. C. 41.00 / 44.00 | -4.00 / -1. D. 44.00 / 41.00 | -1.00 / -3.00 - ANSWER B. 41.00 / 44.00 | -1.00 / -4. What is the average pH value of a human tear? - ANSWER 7.

Upon removal of the crystalline lens, the patient is: a. aphakic b. myopic c. hyperopic d. astigmatic - ANSWER C. Hyperopic If fluorescein evaluation reveals apical staining, it could be due to: A. A lens that is too steep and loose. B. A lens that is too flat and tight. C. Corneal edema D. Neovascularization - ANSWER ABCD Which of the following preservatives has a low incidence of ocular sensitivity with soft contact lenses? A. Chlorbutanol B. Benzalkonium Chloride C. Sorbic Acid D. Thimerosal - ANSWER C. Sorbic Acid The normal cornea is transparent due to the pump action creating proper fluid balance. Which layer of the cornea is most responsible for maintaining this function? A. Basal Membrane B. Bowmans Membrane C. Endothelium D. Epithelium - ANSWER C. Endothelium Which instrument can provide simultaneous information about the cornea, lids, conjunctiva, lashes, contact lens surface and fit? A. Radiuscope B. Corneoscope C. Slit Lamp D. Keratometer - ANSWER C. Slit Lamp Which of the following material components has the highest gas permeability? A. Fluorine B. PMMA C. Butyrate D. Silicone - ANSWER D. Silicone Which of the following choices would work best for the patient's visual needs given the following information: K's 44.00 @ 180 / 45.25 @ 90Rx -3.00 +0.25 x 90 A. RGP lens: 45.25 -3. B. RGP lens with toric posterior curves C. Soft toric lens D. Spherical soft lens - ANSWER D. Soft Spherical Lens

The best option for patients with giant papillary Conjunctivitis (GPC), or those who are cooks or hairdresser is: A. Tinted soft lenses B. Disposable lenses for daily wear only C. Traditional soft lenses that are replaced on an annual basis D. Extended wear lenses - ANSWER B. Disposable lenses for daily wear only The tolerance for the overall lens diameter according to the ANSI standards is: A. 0.005 mm B. 0.05 mm C. 0.01 mm D. 0.1 mm - ANSWER B. 0. The pre-corneal tear film is composed of what 3 layers? - ANSWER Lipid, aqueous, muchoid. In choosing the diameter of soft lens, what is general rule of thumb? A. Same diameter as HVID B. 1 mm larger than HVID C. 2 mm larger than HVID D. 3 mm larger than HVID - ANSWER C. 2 mm larger than HVID Patients who are fit with lenses that will be worn overnight on a flexible or extended wear basis: A. 2 weeks after their initial fit. B. Should have their follow up late in the day to evaluate their lenses and identify problems. C. Will need minimal follow up if they have previously been successful with contact lens wear. D. Should be seen as early as possible in the morning. - ANSWER D. Should be seen as early as possible in the morning. Which auxiliary trial lens will extend the keratometer range to approximately 30.00 D? A. +1.00 D B. +1.25 D C. -1.00 D D. -1.50 D - ANSWER C. -1.00 D In an RGP lens, a poorly finished transitional zone between the optic zone and the lens edge can be evaluated by: A. Keratonomer B. Lensometer C. Profile Analyzer D. Radiuscope - ANSWER C. Profile Analyzer

If the manufacturer's guidelines suggest a minimum of 4 hours for disinfection, what would you suggest to the patient? A. Never leave lenses in disinfectant overnight B. 2 to 3 hours is probably enough C. Use surfactant cleaner and preserved saline D. A minimum of 4 hours is required - ANSWER D. A minimum of 4 hours is required Which of the following may cause a soft lens to need to be replaced more often? A. Chemical disinfection B. Enzymatic disinfection C. Heat disinfection D. Nightly cleaning - ANSWER C. Heat disinfection The following soft lens is placed on patient's eye: 8.4 -2.00 14. An over-refraction is performed with the following results:-1.00 -0.50 x 174 which lens parameters would you order for the patient? - ANSWER -3.25 (SPHERICAL EQUIVALENT) Prolonged periods of reading in contact lenses may lead to lens discomfort due to: A. Decreased blinking B. Accommodative response C. Neovascularization D. Corneal temperature changes - ANSWER A. Decreased blinking Which of the following medications may affect successful contact lens wear? A. Antacids B. Antihistamines C. Aspirin D. Laxatives - ANSWER B. Antihistamines Which of the following lens designs would provide the best visual result for this patient? k's 42.00 @ 180 / 42.50 @ 90 | Rx -3.50-1.75 X 180 A. Spherical gas permeable lens B. Spherical soft lens C. Soft toric lens D. Back surface toric RGP - ANSWER C. Soft toric lens According to the FDA, disposable contact lenses that are removed nightly, should be discarded after: A. When they are cloudy and begin to hurt B. 1 month C. 2 weeks D. 1 week - ANSWER C. 2 weeks The following is an example of what type of astigmatism?

During the diagnostic evaluation of the following patient you observe that the lens rotates 10 degrees to the right, Which of the following lens parameters would you order for the patient? Patient's refraction -2.50-1.00 x 170 Diagnostic lens 8.7 -2.50-1.00 x 170 A. -2.50-1.00x B. -2.50-1.00x C. -2.50-1.00X D. -2.50-1.00x010 - ANSWER A. -2.50-1.00x Which of the following materials would least likely require a weekly enzymatic cleaner? A. Polymethylmethacrylate B. Hydrophilic C. Silicone D. Hydroxethyl - ANSWER A. Polymethylmethacrylate What is the term for the condition in which there is loss of vision without any apparent disease to the eye? A. Amblyopia B. Aniridia C. Astigmatism D. Aphakia - ANSWER A. Amblyopia Which term refers to a sensitivity to light? A. Prebyopia B. Photophobia C. Pannus D. Ptosis - ANSWER B. Photophobia Which type of slit lamp illumination is used for observing tear break up time? A. Retro B. Diffuse C. Specular D. Sclerotic - ANSWER B. Diffuse Thermal disinfection of soft lenses: A. Extend the life of the contacts since it kills microorganisms better than chemicals. B. Can be done by boiling the lens case in a pot of water for one hour if thermal disinfection is not available. C. Is effective against acanthamoeba cysts and trophozoites. D. Does not require prior cleaning with a surfactant since it kills microorganisms efficiently. - ANSWER C. Is effective against acanthamoeba cysts and trophozoites.