NCLE.

NCLE Practice Test Guide 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 +1.00 x75 When a keratomete...

NCLE Pre-Test 2024. annular bifocal contact - ANSWER A lens with distance portion ground into the center of the lens and the near portion ground into the periphery aphakic lenses - ANSWER lenses designed for post-cataract fitting apical zone of cornea - ANSWER the central portion of the cornea with a constant radius of curvature. Also called the corneal cap. artificial tears - ANSWER medications, many of them over the counter, to treat dry eyes aspheric lens - ANSWER A non-spherical...

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 - d 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 - a When a keratometer is being calibrated, which of the following targets will provide the most reliable result? ...

NCLE Advanced Exam 2024. 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...

NCLE EXAM QUESTIONS 2024.Assessment of the quality of the peripheral curves (blends of a rigid contact lens) is achieved by the use of the- a. profile analyzer b. shadow graph c. keratometer d. burton light - ANSWER a. profile analyzer Contact lens power should be specified in- a. back vertex power b. sphero-cylinder power c. power in situ d. posterier apical radius - ANSWER a. back vertex power The slit-lamp illumination that gives an overall view of the cornea but limits detail i...

NCLE Prep Exam 3 Of 4 Quiz 2024.The tolerance for the overall lens diamter according to the ANSI standards is: A. +/-0.005mm B. +/-0.05mm C. +/-0.01mm D. +/-0.1mm - ANSWER B. According to the ANSI standards (Z80.2-1989), the tolerance for the overall diameter of a contat lens is +/-0.05mm. ANSI standards have been developed to maintain quality in the contact lens industry. It is important to have an understanding of the ANSI guidelines. All of the following will enable the practitio...

NCLE Practice Questions a - ANSWER extraocular structures of the eye which include the eyelids, the orbit, lacrimal glands anterior chamber - ANSWER the area bounded in front by the cornea and in the back by the lens and filled with aqueous aqueous - ANSWER a clear, watery solution in the anterior and posterior chambers artery - ANSWER the vessel supplying blood to the eye canal of schlemm - ANSWER the passageway for the aqueous fluid to leave the eye choroid - ANSWER carries bloo...

NCLE Practice Question Guide curve - ANSWER refers to the radius of curvature of the central posterior surface of the lens. It may be expressed in diopters of surface power (D) or in millimeters (mm) of radius or curvature. optical zone - ANSWER the chord diameter over which the base curve extends on the posterior surface of the contact lens, described in millimeters secondary or intermediate curves - ANSWER lies between the base curve and the peripheral curve on the posterior lens surfac...

NCLE Practice Exam 2024 Latest | NCLE Actual Exam Update Questions and Correct Answers Rated A+

NCLE SAMPLE QUESTIONS istamines - ANSWER are beneficial when treating allergies and cold symptoms because they dry out the mucous membranes of the nasal passage. However, this may also lead to dehydration of the tear film, they are also been known to slow down the blink rate and increase corneal sensitivity. against-the-rule astigmatism - ANSWER present when the keratometer readings are steeper in the horizontal meridian (42.50) than in the vertical meridian (40.50 @ 90) aqueous humor, tea...