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National Certification Organization
for Opticians
NCLEAC National Contact Lens Examiners
Advanced Certification
NCLE - AC Advanced NCLE Certification
Exam
Course Title and Number: NCLEAC Advanced Certification Exam Exam Title: Advanced Certification Exam Exam Date: Exam 2025- 2026 Instructor: ____ [Insert Instructor’s Name] _______ Student Name: ___ [Insert Student’s Name] _____ Student ID: ____ [Insert Student ID] _____________
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NCLE-AC National Contact Lens Examiners
Advanced Certification
NCLE Basic Certification Exam
Read All Instructions Carefully and Answer All the Questions Correctly Good Luck: - A warpend lens wil show ______ base curves on the radioscope and a___ power on the lensometer - =Answer>> Two base curves, spherical power on the lensometer A RGP is designed with a thin overall profile so it may flex or bend while on the cornea and become warped. The warping will not change the power as read by the lensometer, but it will create two different base curves found with the radioscope to verify the amount of lens warp. If the tech measures 7.85mm (43 diopters) by 7.76mm (43.50) diopters The lens is warped by 0.50 diopters Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔 Ctrl + Click Here To 📑ORDER NOW 📑 Follow Link 🤔 ORDER NOW 🤔 🎓 TO GET INSTANT EXPERT HELP 🎓 🤔 ORDER NOW 🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com When inspecting the bevel blend of a gas permeable contact lens using the flourescent bulb method the inspector should - =Answer>> Observe a J shaped or ski pattern in a smooth curve. ----> if the curves of the reflected light on the lens surface are smooth and flowing, the peripheral curves are well blended they should represent the path of skis on a ski slope called ski blend When using a keratometer, the amount of corneal astigmatism - =Answer>> is the difference between the reading on the horizontal and vertical drums When inspecting a gas permeable lens, a ________ may be used to evaluate the transitional zone between the optic zone and the lens edge - =Answer>> Profile Analyzer When the question asks about the transitional zones and blends. The profile analyzer is the best answer if it is an option A _______ is used to measure the posterior optical zone diameter - =Answer>> Measuring magnifier Measuring magnifier - measures the hard CL diameter, optic zone and height of bifocal contact lenses If all the mires are not in focus along the principal meridians when verifying a gas perm on a radioscope, the more than likely the lens is: - =Answer>> Warped Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com The key phrase in the question that lets you know that the answer is warped is "along the principal meridians" When a keratometer is out of focus on the cornea - =Answer>> The lower right mire is doubled Removing plastic from the bottom of a lens to produce a flat edge that will control rotation is called - =Answer>> Truncation A radioscope is designed to do what two things - =Answer>> 1. Measure saggital depth
- inspect posterior curve A dynamic flourescin pattern is best illuminated by - =Answer>> cobalt blue light Lens bends and "ski effect" are associated with which CL parameters - =Answer>> Peripheral curvles. When peripheral curves are well blended they should represent the path of skis on a ski slopes Specular Reflection - =Answer>> An illumination that uses 1-2 mm slit and medium to high mag. is REFLECTED OFF an opaque structure behind the area being viewed. is good for corneal neovascularization, has beams smaller than the pupil. A wide swing illumination system and is bright When the keratometer mires reflected off a soft lens are only clear when the wearer blinks, the lens fit is too
- =Answer>> TIGHT Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com A shadowgraph is an optical instrument for visual inspection of CL in main production and quality control, can be used to examine the edge of a CL After sharp junctures between curves on the lens posterior are smoothed out, they are called - =Answer>> Blends When manufacturing a CL using a lathe the face of the button is perp to the spindle so that __________ is avoided - =Answer>> unwanted prism If a lens is tilted when going through the surfacing proess with the lathe, a prism is inadvertently adde to the lens Sclerotic Scatter - =Answer>> An illumination that may use 2-4mm slit of light and is aimed at the limbus from a wide -angle in which the fitter looks for circumcorneal halo while viewed straight ahead with no mag, whose classic use is to view patch edema, corneal scars, incisions and SCL edge light ===> With SL, light is offset and focused on the limbus so it will "Scatter" across the surface of the cornea with a WIDE illumination at 45-60 degrees angle and it is viewed straight ahead with a 10x magnification. It is used to see opacities of the cornea because the normal cornea appears dark and opacities show grey. The opacities have a lighting appearance similar to a halo. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com The secondary curve of a RGP is generallyq - =Answer>> 1-2 diopters FLATTER than the CPC ==> The cornea flattens as it moves away from the apex. The lens diameter, optic zone, and peripheral curve width may be verified simultaneously through the use of a - =Answer>> Measuring magnifier A measuring magnifier measures the hard contact lens diameter , optic zone, and height of a bifocal CL Concentric circles reflected off a patients cornea can be evaluated using - =Answer>> Placido ring A placido disc is a device made of concentric rings drawn on a device of a different color which are typically white rings on the black background. The first refracting surface of the cornea acts as a convex mirror and reflects light in a pattern dependent on the corneal surface quality. The slit lamp illumination _______ is most commonly used for detecting corneal edema - =Answer>> A. Sclerotic Scatter B. Conical Beam C. Parallelepiped D. Indirect Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Lens Equilibration - =Answer>> When the CL reaches the same temperature as the tear film Buffering Agent - =Answer>> Is used to control tear pH, anytime the pH level of an ingredient or part is altered, it is called buffering What to do when a soft CL gets stuck to cornea - =Answer>> Irrigate the eye with ophthalmic solutions until the lens becomes loose. never water Hydrogren Peroxide Systems - =Answer>> most effective way to remove deposits Purpose of Wetting Solution - =Answer>> Create a hydrophilic lens surface. Gas permeable lenses are hydrophobic and need a wetting agent to make them hydrophilic. Edge Flare - =Answer>> Is a method of determininig whether or not a lens is inverted prior to insertion Expiration - =Answer>> Date is the last date the product is still effective Corneal Dehydration - =Answer>> Side effect of taking a decongestant. Antihistamines dry the corneal surface Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com When using a a multipurpose solution the wearer should rub the lens for at leaset - =Answer>> 20 seconds Contacts should be soaked for a minimum of - =Answer>> 4 hours, if a time is not given by the contact lens manufacturer Primary purpose of surfactant cleaner - =Answer>> To remove loose debris from the lens surface Surfactant, reduces the surface tension of water on a surface allowing water to spread out and clean the surface Heat based cleaning system - =Answer>> Is most likely to shorten the lifespan of contact lenses A contact lens wearing schedule should be provided - =Answer>> Verbal and written How to clean residue from gas permeable lenses - =Answer>> Saline Saline is the only rinsing agent listed. Hydrogen peroxide if used as rinsing agents will burn the eye Spectacle Blur - =Answer>> Is caused by temporary deformation of the corneal surface from inappropiratly fit hard lenses Benzalkonium Chloride - =Answer>> A common preservative found in gas permeable solutions. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Thimersol - =Answer>> A mercury based perservative Mucin Balls - =Answer>> Are commonly seen with sililcone lenses because of the lens stiffness and the lenses hydrophobic lens characteristics Sorbic Acid - =Answer>> Least likely to cause negative impact on the cornea Sorbic acid has limited antibacterial and anti fungal activity .Its concentration in SCL is not shown to cause death in corneal epithelial cells Sudden onset pain from wearing a contact lens is most likeyl caused by - =Answer>> a damaged contact lens (if the pain randomly occurs once the contact has already been in the eye for a specfic amount of time) Extended wear contacts can be worn for - =Answer>> overnight or continuous wear ranging 6 nights or up to 30 days. Made of a plastic that allows oxygen to pass through readily SICS - =Answer>> Solution Induced Corneal Staining is one sign of incompatiblity of a care system, lens material and contact lens wearer Falling asleep with contacts now it does not move in the eye -- - =Answer>> irrigate the eye with Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Disadvantage of soft lenses - =Answer>> Low oxyen permissability What is an enzymer used for - =Answer>> To remove buil up 3% hydrogen peroxide when made in contact with the eye - =Answer>> causes chemical burns, must be flushed out with water Perservative - =Answer>> Must meet efficacy of killing bacteria, viral, fungal organisms CL wearer living in a dry space - =Answer>> more likely to expereience burning or gritty sensation Extended wear CL users must remove their contacts once every - =Answer>> 7 nights for disinfection Trimethoprim - =Answer>> Perservative, Least likely to cause CL discoloration Sorbic Acid -- turns CL yellowish or brown Thimersol -- turns CL brownish, red A CL patient complains of burning stinging and redness. The wearer is using a hyrdogren peroxide cleanings system. What happened? - =Answer>> Did not soak lenses for at least 6 hours Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Lid Sensation - =Answer>> A symptom of loose fitting lenses. When wearing a soft spherical contact lens with mild corneal astigmatism a ___________ lens will mask astigmatism more effectively - =Answer>> Thicker A thicker lens will not drape on the cornea as much and will mask more minor astigmatism with a very small lacrimal lens correction Minus Lenticular - =Answer>> Provides a periferal wedge for the upper lid to grasp and attach to which assists holding the lens up. The purpose of soaking solution is to - =Answer>> create a hydrohpilic surface, keeps the lens hydrated, acts as a buffer between the lens and the cornea Air Bubbles - =Answer>> Dimple veiling is indentations in the epithelium resulting from air bubbles trapped under the surface of gas permeable contact lenses 2 weeks - =Answer>> takes to adapt to soft CL Cholorobutanol (perservative) - =Answer>> Inhibits fungi, yeast, and mold growth and is a preferred perservative because of its stability at room temp, low incidence of allergic reactions and proven safety records 75% of patients are - =Answer>> non compliant to at least one of contact lens care regimes Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Patients should clean their CL with a ______ upon removal - =Answer>> surfactant FDA requires CL disinfection in the solution must be effective of major - =Answer>> 4 groups of pathogens
- gram positive coccci
- gram negative rods
- yeast
- fungi Soft lens are most likely to be coated with - =Answer>> high water content, ionic deposits What is CLARE - =Answer>> Contact lens associated red eye Symptoms of tight fighting lens - =Answer>> corneal edema, sensations of soreness, injection, foggy vision, ghost images Effective way to remove protein from a gas permeable lens - =Answer>> Enzymer may be recommended for patients that have high level of protein deposits on the lens that is not removed by the cleaner. Enzymes do not replace routing cleaning and disinfecting IF RGP is too tight - =Answer>> decrease the optical zone Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com Myoflange - =Answer>> A thicker edge that the myoflange provides to help prevent it from sliding to lid To steepen an RGP the fitter can - =Answer>> Steepen the base curve and increase the overall diamter Soft CL wearers says that their vision is only clear after they blink and then blurs again. This is indicative of - =Answer>> steep fitting Hydrogel lens, most effective ways to evaluate movements - =Answer>> pushing the lens up A silicone hydrogel lens adheres to the globe more than the other soft lens materials. To test for movement, the fitter must manually push up the contacts A first time extended wear CL should have a follow up the - =Answer>> next morning Due to the nature of overnight wear, the increased likelhood of complications the initial follow up for a first time extended wearer should occur the next mormning A RGP with a lot of apical vaulting - =Answer>> indication of a steep fit. Keratometer readings conducted during a follow up should be within - =Answer>> 0.50 D of the inital keratometer readings. Any keratometer reading over 0.50D may be indictivatie of underlying pathology or poorly fitting lenses. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
🤔Hit Me UP__ Inbox Open 24/7 – 365 …...!!!! 🤔 Chat with us here : 🤔 Hybridgrades101@gmail.com A soft contact lens with an edge lift - =Answer>> means the lens is too loose need to steepen (make bc smaller number) the base curve to tighten the fit. Indication for a flat fit RGP - =Answer>> 1. excessive lag
- edge lift
- excessive movement when blinking RGP flexure may be eliminated by - =Answer>> increasing the center thickness flexure (tendency of the lens to bend) A soft CL patient has a lens that demonstrates excessive movement, what should you do - =Answer>> pick a larger diameter lens (will make it tighter and move less) What is relationship between diameter,BC ,movement??? An RGP sitting too tight has a BC of 7.5mm what should you do - =Answer>> Every 1mm of change in diameter = 0.50D of change. An RGP with no apical clearence ===> - =Answer>> means it is a flat fit. (allow more movement) A flat fit touches the corneal apex Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
