Medicine > QUESTIONS & ANSWERS > NCLE Chapter 12 2022/2023 (All)

NCLE Chapter 12 2022/2023

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Disposable lenses minimize problems caused by: a) surface deposits b) a tight fit c) hypoxia d) loose fitting lenses - ANSWER A Most bandage lenses are made of: a) PMMA b) HEMA c) glass d) li... quid crystal - ANSWER B . Which of the following is NOT a good reason for patients wanting extended wear lenses? a) long work hours b) frequent traveler c) save money on solutions d) erratic work schedule - ANSWER C The maximum time recommended for continuous wear before removal for cleaning and disinfection is: a) 24 hours c) 7 days b) 3 days d) 30 day - ANSWER D Bandage lenses are used in cases of bullous keratopathy for: a) reducing pain b) speeding evaporation of corneal fluid c) enhancing corneal hydration d) a and b - ANSWER D Which of the following adverse effects is related to extended wearing of rigid lenses more than soft lenses? a) edema b) 3 & 9 o'clock stain c) neovascularization d) surface deposits - ANSWER B When adverse corneal changes are observed, the fitter should: a) notify the prescribing doctor b) adjust the lens parameters accordingly c) switch to non-preserved solutions d) all of the above - ANSWER A Patients with a tear break-up time of less than ___ seconds should NOT be considered for extended wear. a) 10 b) 20 c) 30 d) 40 - ANSWER [Show More]

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