NCLE Practice Test 2024 Questions & Answers 100% Correct

Which of the following prescriptions indicates against-the-rule astigmatism? a)-4.50 +1.00 x75 b)-4.50 +1.00 x 180 c)-4.50 -1.00 x 165 d)4.50 -1.00 x 180 - ANSWER-a)-4.50 +1.00 x75 When a keratometer is being calibrated, which of the following targets will provide the most reliable result? a)the single-cut anterior surface of a high-plus lens b)a perfectly flat highly polished mirror c) a set of steell balls of known radii d)the unfinished posterior surface of a low-minus lens - ANSWER-c) a set of steel balls of known radii Inadequate movement of a soft lens can be corrected by using a lens that a) has a steeper base curve b) has a smaller diameter c) has a larger diameter d) has a higher water content - ANSWER-b)has a smaller diameter A long-term, successful, hydrogel contact lens wearer suddenly develops dry eyes. Which of the following is most likely to cause this problem? a) Use of oxidative solution b) use of rewetting drops c) use of anti-histamines d) Wearing of lenses in the wrong eyes - ANSWER-c) use of anti-histamines