Soft toric contact lenses Study guides, Revision notes & Summaries

NCLE Practical Exam Which Curve is the Flattest? A) 7.5 mm B) 44.75 D C) 7.6 mm D) 45.50 D - 7.6 mm Inflammation of the Eyelids is Called: A) Palpebritis B) Keratitis C) Conjunctivitis D) Blepharitis - Blepharitis The Base Curve of a Rigid Lens was Ordered at 7.75 mm but Received at 7.85 mm. The Lens is _______ than ordered. A) 0.50 D Flatter B) 0.50 D Steeper C) 1.00 Flatter D) 1.00 Steeper - 0.50 D Flatter The Fairness To Contact...

NCLE Practical Questions and Answers Verified A+ Steep Fluorescein Pattern - Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - Bright green pooling vertically, faint green pooling horizontally Pri...

Ncle Advanced, Questions with accurate answers. 100% Verified. 2022/2023 Which of the following medications may affect successful contact lens wear? a. antacids b. antihistamines c. aspirin d. laxatives - antihistamines Which term refers to a sensitivity to light A.presbyopia B.Photophobia C.Pannus D. Ptosis - Photophobia The following is an example of what type of astigmatism? K's 42.50 @180 /40.50 @90 A. with the rule B. Lenticular astigmatism C.Against the rule D...

NCLE Practice Test Practical, Questions with accurate answers. 2022/2023. Steep Fluorescein Pattern - Bright green pooling center, very faint green pooling on diameter of lens Flat Fluorescein Pattern - Bright green pooling on diameter of lens, very faint green in center Against-the-rule Astigmatism Pattern - Bright green pooling horizontally, faint green pooling vertically With-the-rule Astigmatism Pattern - Bright green pooling vertically, faint green pooling horizontally Pris...

NCLE Test Questions And Answers Latest Update 2023/2024 (Graded A+). 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 r...

optic zone - the central portion of a contact lens which contains the refractive power and generally corresponds to the central corneal cap posterior apecal radius - this term is generally used in reference to spin-cast soft lenses. the curvature of the posterior surface of the lens changes with the refractive power. the radius of curvature is measured at the apex of the posterior surface. steeper base curve - occurs when the posterior radius of curvature is decreased (i.e. 8.4 to 8.1 ...

Ncle Advanced Exam Questions And Answers | Latest Update 2023/2024 (Rated 100%). Which term refers to a sensitivity to light A.presbyopia B.Photophobia C.Pannus D. Ptosis - Answer Photophobia The following is an example of what type of astigmatism? K's 42.50 @180 /40.50 @90 A. with the rule B. Lenticular astigmatism C.Against the rule D. Irregular astigmatism - Answer Against the rule astigmatism The cornea receives nutrients from 1 Aqueous humor 2 Tears 3 Limbal blood vessels 4 ...

The answer is D. The posterior optical zone will directly affect the lens to cornea relationship of a rigid gas permeable lens. If the posterior optical zone is steepened, it will increase the sagittal depth. If it is flattened, it will decrease the sagittal depth. Changing the power, which is accomplished by changing the anterior optical zone, will not affect the sagittal depth of the lens, nor will changing its edge design. - ANSWER 1. The sagittal depth of a rigid gas permeable contact lens ...

NCLE Practice Test Questions And Answers Latest Update 2023/2024 | 100% Verified. 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 During slit-lamp evaluation, on upward gaze, a patient's soft contact lenses move 0.5 to 1mm when the patient bl...

NCLE Practice Test Questions And Answers Latest Update 2023/2024. A Correct Statement regarding epithelial cells is that they: a)Comprise the posterior layer of the cornea b)Are unable to regenerate c)Comprise the thickest layer of the cornea d) Have the ability to reproduce - Answer d) have the ability to reproduce 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...