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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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NCLEAC Advanced NCLE Certification Exam
Questions with Answers and Rationales |
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NCLE-AC National Contact Lens Examiners
Advanced Certification
NCLE - AC Advanced NCLE Certification
Exam
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- When fitting a patient with a pterygium that impinges on the cornea by 2 mm at the 9 o'clock area, which of the following designs should be considered.first? A. Soft contact lens B. 9.8 mm diameter RGP lens C. 8.8 mm diameter RGP lens D. Prism ballasted soft lens - =Answer>> The answer is C. Due to the irregular surface that often results from this vascular growth, the patient's best chance of optimum vision will come with a rigid gas permeable lens. A 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 🤔
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- Soft lens fitting should result in: A. Three point touch B. Apical clearance C. Upper lid attachment D. None of the above - =Answer>> The answer is A. Three point touch refers to the relationship of the soft lens to the cornea. The lens should make contact centrally with the corneal apex, vault the limbus, and have its edges rest on the sclera. Ultra-thin soft lenses, due to their flexure, may drape the cornea completely. A soft lens should never be fit with apical clearance, as this will result in fluctuating vision and seal off in the periphery, resulting in a tight fit.
- If the HVID (Horizontal Visible Iris Diameter) is 11.0mm, the minimum diameter soft lens you should choose is: A. 14.5 mm B. 14.3 mm C. 14.0 mm D. 13.0 mm - =Answer>> The answer is D. The general rule of thumb in choosing a soft lens diameter is that it should be at least 2.0 mm larger 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 than the HVID. If the HVID is 11.0mm, the smallest soft lens diameter should be 13.0 mm.
- The sagittal depth of a soft lens is determined by: A. Diameter and power B. Base curve and diameter C. Diameter and water content D. Base curve and thickness - =Answer>> The answer is B. The overall lens diameter and the curve of the posterior portion of the lens determine the sagittal depth of any contact lens, soft or rigid. The larger the diameter and/ or the steeper the base curve, the greater the sagittal depth. Conversely, the smaller the diam- eter and/ or the flatter the base curve, the smaller the sagittal depth.
- A soft lens displays inferior edge lift on the eye. What can be done to remedy this situation? A. Decrease lens diameter B. Flatten base curve C. Steepen base curve D. Increase center thickness - =Answer>> The answer is C. 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 most reliable method of assessing the fit of a soft lens is to put your thumb on the lower lid, have the patient look up slightly and push the lens up. If the lens moves freely without much force and then moves gently back into place, it is considered a good fit. Asking the patient how the lens feels should not be a criterion for final evaluation, as patients will usually choose lenses that are initially tight. Fluorescein evaluation will not provide information about the fit of a soft lens and may be absorbed by the lens, causing discoloration.
- If all of the following soft lenses are made with the same design and material, which should have the greatest sagittal depth? A. 8.4/14. B. 8.4/14. C. 8.8/14. D. 8.8/14.5 - =Answer>> The answer is B. The larger the diameter, the greater the sagittal depth if the base curve is kept the same. The 14.5 diameters have a greater sagittal depth than their 14. counterparts. The steeper the base curve, the greater the sagittal depth. That would mean that the 8.4 would result in a greater sagittal depth than the 8.8 indicating that the 8.4/14.5 lens would have the greatest sagittal depth. Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
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- Which of the following soft lenses would you expect to fit the loosest on the eye if the lens material and design are all the same? A. 8.4/14. B. 8.4/14. C. 8.8/14. D. 8.8/14.5 - =Answer>> 50. The answer is C. When considering sagittal depth, if the base curves of the lenses are the same, the smaller the diameter, the shorter the depth. This indicates that the 14. diameters are looser than the 14.5 diameters. If the lens diameters are equal, the flatter the base curve, the looser the lens. Therefore, the 8.8 would be flatter than the 8.4 and confirms that the 8.8 base curve with the 14.0 diameter would most loosely fit of the choices given.
- Given the following information: Diagnostic Lens -2.00 -1.00 cx 90 Patient's Rx -3.00 +1.00 cx 170 The diagnostic lens rotates 15 degrees to the right. What soft toric lens power would you order for this patient? A. -2.00 -1.00 cx 65 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 D. Horizontal VerticalIris Diameter - =Answer>> The answer is B. HVID stands for Horizontal Visible Iris Diameter and is determined by measuring the iris horizontally at its widest part. An average HVID is 11.5 mm.
- The manufacturing process most often used for disposable contact lenses is: A. Cast molding B. Lathe cut C. Spin cast D. Wax molding - =Answer>> The answer is A. Cast molding of a soft contact lens results in very consistent lens parameters which allows manufacturers to produce the vast quantities of lenses needed to satisfy the disposable lens market. Lathe cutting is a more costly and labor-intensive method of manufacturing soft lenses and is used for conventional lenses. Spin casting causes the posterior surface of the lens to change as the power increases and results in an aspheric design and a less predictable fit.
- What is the least amount of cylinder a patient should have before soft toric lenses are discussed? 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. 0.25 D B. 0.75 D C. 1.25 D D. 2.00 D - =Answer>> 54. The answer is B. Soft toric lenses are generally made with cylinders of 0.75 D and greater. While not all patients with only 0.75 D of cylinder will require a soft toric lens, this should be a starting point for discussion and evaluation of the need for a soft toric lens to provide the best visi_onfor the patient.
- When a longterm soft lens wearer complains of discharge, itching, and an occasional pulling up of the lens by the upper lid, the practitioner should: A. Evert the upper lid and check for GPC B. Remove the lens and check for follicles C. Raise the upper lid and check for SLK D. Pull the lower lid down and check for jelly bumps - =Answer>> The answer is A. Discharge, itching and lens displacement in a long time soft lens wearer are classic symptoms of GPC (Giant Papillary Conjunctivitis). Everting the upper lid and looking for enlarged papillae 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 FDA Classifications for soft lens materials are grouped by the water content of the material (low water versus high water) and the electrical charge on their surface (ionic versus non-ionic). Contact lens materials that carry an electrostatic charge are ionic and lens materials that do not carry an electrostatic charge are classified as non-ionic. The neutrally charged lens materials (i.e. non-ionic) are less likely to attract the positively charged proteins and lipids in the tear film. Soft Jens materials that are classified as low water, non-ionic are considered the most deposit resistant materials.
- Which of the following soft lens material groups is considered the least resistant to deposit formation? A. Low water, non-ionic B. High water, non-ionic C. Low water, ionic D. High water, ionic - =Answer>> The answer is D. The lens material group that is considered the least resistant to deposit formation is the high water, ionic (negatively charged lens surface) lens material. It is also the lens material that is most reactive to solutions and their preservatives.
- The approved protocol for single use lenses is: 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. Clean and disinfect daily B. Clean and disinfect weekly C. Clean and disinfect bi-weekly D. Discard upon lens removal - =Answer>> The answer is D. Daily disposable lenses or single use lenses are approved to be worn for only one day and then thrown away. They have not been approved to be used with solutions, nor should they need to be, as they must be discarded after one use.
- What is the FDA recommended replacement schedule for disposable lenses that are worn on an extended wear basis? A. 1 week B. 3 months C. 2 weeks D. 1 month - =Answer>> The answer is A. The FDA has approved the use of extended wear disposable lenses for no longer than 1 week (6 nights/ days). Disposable lenses that are worn on a daily wear basis should be replaced after two weeks of daily wear.
- Most soft lenses today have a handling tint. The amount of light absorbed by these lenses is: 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 edema and neovascularization may result from longterm wear of a tight soft lens, they are not the condition that was described. In- creased IOP (intraocular pressure} occurs inside the anterior chamber and is not affected by a tight soft lens.
- Which measuring device could help determine if a soft lens is too steep? A. Profile analyzer B. Keratometer C. Ophthalmoscope D. Radiuscope - =Answer>> The answer is B. The keratometer, normally used for measuring the central curve of the cornea, can help to determine if a soft lens is too tight. If the mires clear after the blink and then blur, the lens is too steep or tight. If the mires are clear and then blur after the blink, the lens is too flat or loose. The mires of a well fitting soft lens will remain clear at all times.
- What is the approximate clinical measurement of oxygen permeability through a 38 % water content hydrogel lens? A. 9 +/- B. 20 +/- 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 C. 38 +/- D. 55 +/- - =Answer>> The answer is A. An average Dk for soft lens materials that contain less than 55% water are in the 8 to 16 range. For soft lens materials that have a greater water content, the average Dk for the material is 20 to 38.
- Extended wear soft contact lenses come in what water contents? A 38% to 55% B. 24% to 79% C. 55% and above D. 71% to 79% - =Answer>> The answer is B. Extended wear soft contact lenses are available in a wide range of water contents. Increasing water content is only one method of increasing the oxygen transmission of the lens. Another means of increasing oxygen is making the lens thinner.
- Given the following information: Rx -3.50 -1.50 ex 170 Diagnostic lens 8.8 -3.50 -1.50 cx 180 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 ordered lens should always orient at the same place as the diagnostic lens. If it does not, the cylinder axis of the lens will not align correctly with the patient's cylinder axis.
- "SEAL" is a condition, which is characterized by: A. A lesion in the inferior cornea B. A lesion in the superior cornea C. Edema in the corneal endothelium D. Loss of central vision - =Answer>> The answer is B. "SEAL" is typically found in soft lens wearers and stands for Superior Epithelial Arcuate Lesion. "SEAL" is characterized by an epithelial lesion of 1 to 3 mm. The lesion is generally 1 mm from the superior limbus, is arcuate in shape and parallel to the limbus. It is generally considered to be the result of a soft lens that does not flex enough to conform to both the flat sclera and steeper cornea. The upper lid rubs the lens into the superior cornea, causing the epithelium to split. Discontinuing lens wear until the condition resolves and then refitting with a softer, thinner lens material will usually solve the problem.
- Where is the power curve on a spin cast soft lens? A. Posterior surface B. Anterior 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 C. Astigmatic surface D. On the edge - =Answer>> The answer is A. A spin cast soft lens is created with a constant anterior (outside) curve. It is the posterior curve that changes as the power of the lens changes.
- The major concern in using silicone as a contact lens material is it's? A. Hydrophilic nature B. Optics C. Hydrophobic nature D. Oxygen transmission - =Answer>> The answer is C. Tensile strength refers to a material's ability to return to its original shape after it has been manipulated by outside forces. This is an important property in soft hydrogel lenses. The index of refraction refers to the ability of light to pass through a material. Crosslinking agents are the part of the lens material whose main purpose is to hold the polymer chains together. An elastomer is a co-polymer with many repeating polymer units.
- When 50 or more epithelial microcysts are noted during the slit lamp exam, the patient should be told to: Need Writing 🤔Help? We've Got You Covered! ✍ 100% NO A I or Plagiarism Guaranteed🤔
