NCLE PRACTICE EXAM QUESTIONS AND
ANSWERS FOR 2024 EXAM SCORED A+
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 -Answera. profile analyzer
Contact lens power s...
NCLE PRACTICE EXAM QUESTIONS AND ANSWERS FOR 2024 EXAM SCORED A+ Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by the use of the- a. profile analyzer b. shadow graph c. keratometer d. burton light -Answer✅ a. profile analyzer Contact lens power should be specified in- a. back vertex power b. sphero -cylinder power c. power in situ d. posterier apical radius -Answer✅ a. back vertex power The slit-lamp illumination that gives an overall view of the cornea but limits detail is- a. sclerotic scatter b. diffuse c. specular reflection d. oscilatory -Answer✅ b. diffuse When a keratometric miers reflected off a soft contact lens are only clear when the wearer blinks, the lens fit is too- a. small b. large c. steep d. flat -Answer✅ c. steep Transient keratometric mier distortion is usually due to- a. pre-ocular tear film abnormalities b. prolonged rigid lens wear c. prolonged soft lens wear d. irregular corneal astigmatism -Answer✅ a. pre-ocular tear film abnormalities Epithelial edema which manifests itself clinically as central corneal haze, is verified by the slit lamp using sclerotic scatter illumination. What specific technique does the examiner use to see this condition? a. the naked eye and an angle between the slit lamp beam and the eye of 90˚ b. the blue cobalt filter of the slit lamp and an angle of about 45˚ c. the green filter of the slit lamp with high magnification d. high magnification and an angle between the beam and scope of 180˚ -Answer✅ a. the naked eye and an angle between the slit lamp beam and the eye of 90˚ With a rigid contact lens in place a flourescein pattern shows a narrow bend horizontally wih a concentration of flourescein inferiorly and superiorly under the lens. Which one of the following type of astigmatism is represented by this pattern? a. lenticular astigmatism b. residual astigmatism c. against the rule astigmatism d. with the rule astigmatism -Answer✅ d. with the rule astigmatism Refractive Rx -3.00 -1.00 x 170 K's 42.00 @ 170/43.00 @ 80 Given the above Rx and K's he following diagnostic toric soft lens was used: B.C. 8.8 Power -3.00 -1.00 x 180 During dianostic evalutation, the above lens rotated 10 clockwise. The lens ordered should have an axis of: a. 10 b. 180 c. 170 d. 160 -Answer✅ b. 180 Given the same circumstances from the above question, once the correctly ordered lens has been dispensed, the rotational marks should settle at . a. 6 o clock b. 10 clockwise rotation c. 10 counter clockwise rotation d. none of the above -Answer✅ b. 10 clockwise rotation An instrument that allows simultaneous verification of lens diameter, optic zone width, and peripheral curve width is: a. measuring magnifier b. ophthalmometer c. profile analyzer d. radiuscope -Answer✅ a. measuring magnifier (the book says d. radiuscope) The instrument used for magnification of the edge of a rigid CL is a . a. radiuscope b. shadowgraph c. profile analysis d. keratometer -Answer✅ b. shadowgraph Mary is wearing in her right eye RGP lens with a base curve of 43.50 and a power of +2.75. The doctor refracts -0.75 sphere over this lens. If you wish to order her a new lens with a curve of 43.00, what will the new power be? a. +1.50 b. +2.00
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller NURSINGEXAMS. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.49. You're not tied to anything after your purchase.
