NCLE 2 Practice Test Questions & Answers 100% Accurate

The lipid layer functions primarily to: - ANSWER-prevent evaporation of the tear film The test which assesses the quantity of tears normally produced is: __________ - ANSWER-Schimmer The test which assesses the quality of the tear film is: _______ - ANSWER-BUT Prospective patients who fall within the following age group generally provide the best prognosis for successful contact lens fitting: ________ to ________ - ANSWER-13 to 38 Which of the following would indicate a good prognosis for successful contact lens fitting? a. adequate manual dexterity b. regular low astigmatism c. refractive error less than ± 1.50 D. d. BUTs longer than 15 seconds - ANSWER-a b d The base curve of a certain contact lens is equal to 7.5 mm radius of curvature. The equivalent power in diopters is: __.__ - ANSWER-45.00 The primary function of a keratometer is to: measure the "________ of the _________" - ANSWER-curvature of the cornea When moved 5 mm from its original position the effective power of a 10.00 diopters lens will change: "_.__ D" - ANSWER-0.50 D