NCLE Practice Exam Questions with Correct Answers Already Graded A+

NCLE Practice Exam Questions with Correct Answers Already Graded A+ . Upon initial insertion of a GP lens, the patient complains about flare. To correct this problem, the fitter should choose a lens with a/an: a) increased base curve b) increased optical zone c) decreased optical zone d) flattened base curve - Answer b) increased optical zone Which curve would a fitter modify to allow more tear flow under the edge of a rigid lens? a) Posterior peripheral curve b) Optical curve c) Anterior peripheral curve d) Anterior central curve - Answer a) Posterior peripheral curve If a well fitted diagnostic lens has a -3.00 power and the over-refraction at 12mm is - 2.00, the correct lens power to order is: a) -4.50 b) -4.75 c) -5.00 d) -5.25 - Answer c) -5.00 For a patient with 1.25D of with-the-rule astigmatism, who is active outdoors and who operates heavy construction equipment, the most appropriate type of contact lens would be: a) soft toric lenses b) spherical gas permeable lenses c) spherical soft lenses d) toric gas permeable lenses - Answer a) soft toric lenses Which of the following instruments is most commonly used to measure the diameter of the optical zone of a contact lens? a) contactometer b) radiuscope c) measuring magnifyer d) lensometer - Answer c) measuring magnifyer According to the US Food and Drug Administration, the maximum time allowable for continuous wearing of silicone hydrogel lenses is: a) 7 days b) 14 days c) 21 days d) 30 days - Answer d) 30 days When ridig lenses are received from the manufacturer, which of the following instuments is not needed for inspection and verification? a) biomicroscope b) radiuscope c) lensometer d) measuring magnifyer - Answer a) biomicroscope When using a lid manipulation to assist in "popping" a rigid lens off the eye, the wearer should first make sure that the: a) lower lid meets the lower part of the cornea b) lens is resting on the cornea, where the fissure is widest c) edge of the lens has been located with a penlight d) lens is resting on the sclera, where the tissue is widest - Answer b) lens is resting on the cornea, where the fissure is widest The most effective way to remove a soft contact lens that has adhered to the cornea is to: a) firmly press the lids against the sclera with fingertips, release, then blink the lid closed firmly b) gently pinch the lens directly off the cornea with clean fingertips c) affix a suction cup to the center of the lens and pull it straight away, using steady pressure d) irrigate the eye with lubricant until the lens moves freely, then remove as usual - Answer d) irrigate the eye with lubricant until the lens moves freely, then remove as usual Following the fitting and dispensing of any continuous wear contact lenses, it is advisable to see the patient: a) the following morning b) in 2 weeks c) within 2 days d) in 1 week - Answer a) the following morning The fitter can differientiate between a back toric lens and bitoric lens by utilizing a: a) radiuscope b) keratometer c) profile analyzer d) lensometer - Answer a) radiuscope The instrument designed primarily to measure the base curve of a contact lens is the: a) keratometer b) radiuscope c) lensometer d) ophthalmascope - Answer b) radiuscope The most frequently used corneal contact lenses for patients with keratoconus are: a) specially designed cone lenses b) bandage contact lenses c) scleral lenses d) soft contact lenses - Answer a) specially designed cone lenses The majority of continuous wear hydrophillic soft lenses are composed of: a) plymethyl-methacrylate b) fluorosilicone acrylate c) silicone acrylate d) silicone hydrogel - Answer d) silicone hydrogel A drooping of the upper lid is called: a) entropion b) strabismus c) ptosis d) nystagmus - Answer c) ptosis A spherical rigid contact lens has: a) a ballast system to accommodate rotational effects b) one continuous curve throughout the optical zone c) correction for approximately 1.5D of presbyopia d) a back surface curve that flattens progressively - Answer b) one continuous curve throughout the optical zone Which layer of the tear film helps to prevent evaporation? NCLE Practice Test Already Graded A+ a) vitreous layer b) lipid layer c) mucin layer d) aqueous layer - Answer b) lipid layer Soft lenses should be considered when the patient: a) wants the best possible vision at all times b) is concered with cost c) desires intermittent wear d) has a small palpebral fissure - Answer c) desires intermittent wear Which of the following characteristics is most likely to be exhibited by a diabetic contact lens patient? a) exophthalmos b) blepharitis c) fluctuating vision d) poor blink habits - Answer c) fluctuating vision A rigid contact lens used to enhance color vision in patients who have color deficiencies is: a) light green b) dark red c) medium yellow d) dark blue - Answer b) dark red Upon completion of a contact lens fitting, the best way to provide additional information to the patient on fees, care systems, and wearing schedules is by: a) directing the patient to consult online reference material b) discussing such matters with the patient by telephone, as the need arises c) supplying the patient with pamphlets and office handouts d) asking the patient to bring up any questions at the next regular visit - Answer c) supplying the patient with pamphlets and office handouts A patient complains of pain upon lens insertion, with excessive tearing and blurry vision. Fluorescein evaluation reveals zigzag linear corneal staining. These signs and symptoms are most likely due to a: a) tight-fitting lens b) solution sensitivity reaction c) loose-fitting lens d) foreign body under the lens - Answer d) foreign body under the lens The Fairness to Contact Lens Consumers Act covers: a) GP lenses only b) specialty lenses only NCLE Practice Test Already Graded A+ c) disposable lenses only d) all types of lenses - Answer c) disposable lenses only When a soft diagnostic lens is too flat, it may demostrate: a) limited movement b) impingement on the limbus c) scleral indentation d) edge standoff - Answer d) edge standoff Given the following "K" readings: 41.87@055/43.62@145 What optical condition does the patient have?