Ncle Advanced exam (100% correct and graded A+)

Which of the following medications may affect successful contact lens wear? a. antacids b. antihistamines c. aspirin d. laxatives - Answer-antihistamines 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 Orbicularis occuli a. 1, 3 & 4 b. 2 & 3 c. 1, 2 & 3d. 3 & 4 - Answer-aqueous humor, tears and limbal blood vessels The increased loss of ability of the crystalline lens to accommodate is called? - Answer-presbyopia Which instrument can provide simultaneous information about the cornea, lids, conjunctivitis, lashes, contact lens surface and fit? A. Radius scope B. Corneascope C. Slitlamp D. Keratometer - Answer-Slit lamp The classic model of the pre-corneal tear film is composed of three layers what are they? - AnswerLipids aqueous mucin The average ph value of the human tear is a. 6.6 b. 7.4 c. 7.8 d. 10.0 - Answer-B. 7.4