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Contact Lens – Ncle Questions And Answers With Correct Solutions Rated A+ Latest Updated 2024/2025 $10.99   Add to cart

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Contact Lens – Ncle Questions And Answers With Correct Solutions Rated A+ Latest Updated 2024/2025

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Contact Lens – Ncle Questions And Answers With Correct Solutions Rated A+ Latest Updated 2024/2025

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Contact Lens – Ncle Questions And
Answers With Correct Solutions Rated
A+ Latest Updated 2024/2025
Increasing the sagittal depth of a rigid lens will: - ANSWER✔✔ Not change the
effective power of the lens


If the diameter of an R.G.P. lens is 9.2 mm and is fitting too steep on the cornea,
what adjustment could be made to the lens? - ANSWER✔✔ Decrease the
diameter


The DK value of a lens is: - ANSWER✔✔ Oxygen permeability of the material


All of the following are functions of a wetting solution except: - ANSWER✔✔ It
helps to clean the lenses after removal from the eye


Development of new blood vessels in the cornea is called: - ANSWER✔✔
Vascularization


The original rigid material used in contact lens manufacturing is: - ANSWER✔✔
Poly methyl methacrylate


When wearing minus contact lenses,, what would be a big advantage of the
contacts over spectacles? - ANSWER✔✔ Enlarged field of view


What would be a disadvantage to hydrophilic contact lenses? - ANSWER✔✔
Deposit formation

, If the base curve of a contact lens measures 45.OOD, its radius of curvature is: -
ANSWER✔✔ 7.50 mm


Which of the following radii of curvature would indicate the steepest base curve?
- ANSWER✔✔ *a. 7.3 0 mm
b. 7.40 mm
c. 7.50 mm
d. 7.60 mm


The term "Haptic lens" is often used in reference to: - ANSWER✔✔ Scleral lens


Which of the following instruments cannot be used to check the diameter of a
contact lens? - ANSWER✔✔ Lens clock


A contact lens is quite loose. Its base curve is 7.40 mm. In order to obtain a tighter
fit, we might change the base curve to: - ANSWER✔✔ 7.35 mm


When checking the base curve of a contact lens, the tolerance should be: -
ANSWER✔✔ +0.05mm


Bitoric lenses are used: - ANSWER✔✔ when there is a great deal of corneal
astigmatism


Prism ballast lenses are used: - ANSWER✔✔ To keep the lens from rotating

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