ABO NCLE TEST PAPER 2026/2027 QUESTIONS AND
SOLUTIONS RATED A+
✔✔Lensometer - ✔✔Device for verifying lens power and parameters.
✔✔Thickness gauge - ✔✔Tool for measuring lens thickness accurately.
✔✔Oxygen permeability (Dk) - ✔✔Measure of lens material's oxygen transmission.
✔✔Transmissibility (Dk/t) - ✔✔Oxygen transmission per thickness of lens.
✔✔Wetting angle - ✔✔Angle indicating lens surface's affinity for moisture.
✔✔Silicone hydrogel - ✔✔Lens material with high oxygen permeability.
✔✔Central posterior curve (CPC) - ✔✔Base curve determining lens fit on cornea.
✔✔Peripheral curves - ✔✔Curves aiding lens alignment on the eye.
✔✔Wearing schedules - ✔✔Guidelines for daily or extended lens use.
✔✔Solution compatibility - ✔✔Compatibility of cleaning solutions with lens types.
✔✔Chemical disinfection - ✔✔Using chemicals to sanitize contact lenses.
✔✔Emergency responses - ✔✔Actions for patient lens insertion/removal issues.
✔✔Lens awareness - ✔✔Patient's perception of lens presence in eye.
✔✔Giant papillary conjunctivitis (GPC) - ✔✔Allergic reaction causing papillae on
conjunctiva.
✔✔Corneal edema - ✔✔Swelling of cornea due to fluid accumulation.
✔✔Contact Lens Associated Red Eye (CLARE) - ✔✔Redness caused by contact lens
wear.
✔✔Microbial Keratitis - ✔✔Infection of the cornea due to microorganisms.
✔✔Dimple veiling - ✔✔Surface irregularities in the lens affecting vision.
✔✔Fluorescein pattern evaluation - ✔✔Assessment of lens fit using fluorescein dye.
,✔✔Visual acuity - ✔✔Sharpness of vision measured under specific conditions.
✔✔Mucin Balls - ✔✔Mucus clumps affecting contact lens wearers.
✔✔Microbial Keratitis - ✔✔Infection of the cornea caused by microorganisms.
✔✔Acanthamoeba Keratitis - ✔✔Corneal infection from Acanthamoeba protozoa.
✔✔Dendritic Ulcer - ✔✔Corneal ulcer with a branching appearance.
✔✔Corneal Infiltrates - ✔✔Accumulation of immune cells in the cornea.
✔✔Corneal Dellen - ✔✔Localized thinning of the corneal stroma.
✔✔Corneal Staining - ✔✔Use of fluorescein to detect corneal damage.
✔✔Corneal Molding - ✔✔Alteration of corneal shape due to lens wear.
✔✔Gross Evaluation Techniques - ✔✔Methods to assess contact lens movement
visually.
✔✔Fluorescein Evaluation Procedures - ✔✔Tests using fluorescein for ocular surface
assessment.
✔✔Visual Acuity - ✔✔Clarity of vision measured by eye charts.
✔✔Overrefraction - ✔✔Refraction test to refine lens prescription.
✔✔Follow-Up Protocols - ✔✔Standard procedures for monitoring patient lens use.
✔✔Lens Parameters - ✔✔Specifications like size and curvature of lenses.
✔✔Record Retention - ✔✔Policies for maintaining patient records securely.
✔✔Patient Chart Documentation - ✔✔Methods to track patient health and lens
changes.
✔✔Product Inventory Techniques - ✔✔Methods for managing lens and tool supplies.
✔✔Disinfection Guidelines - ✔✔Regulations for cleaning contact lenses safely.
✔✔Prescriber Identification - ✔✔Determining the original prescriber of lenses.
, ✔✔Recall Procedures - ✔✔Steps for reminding patients about follow-ups.
✔✔Federal Guidelines - ✔✔Regulations from agencies like CDC and FDA.
✔✔Patient Confidentiality Regulations - ✔✔Laws protecting patient information privacy.
✔✔Cylinder Axis Tolerance - ✔✔Acceptable deviation for lens cylinder alignment.
✔✔Lens Power - ✔✔Measured in diopters (D), indicates lens strength.
✔✔Flatter Lens - ✔✔Lens with lower curvature, reducing magnification.
✔✔Steeper Lens - ✔✔Lens with higher curvature, increasing magnification.
✔✔Benzalkonium Chloride - ✔✔Disinfectant, not recommended for allergic patients.
✔✔Hydrogen Peroxide - ✔✔Recommended disinfectant for allergic contact lens
patients.
✔✔Chlorhexidine - ✔✔Antiseptic, not typically used for contact lenses.
✔✔Thimerosal - ✔✔Mercury-based disinfectant, rarely used now.
✔✔Prometric Testing Center - ✔✔Location for in-person examination scheduling.
✔✔Remote Proctoring - ✔✔Online exam supervision via camera and microphone.
✔✔Eligibility ID - ✔✔Required to schedule your examination appointment.
✔✔ABO Practical Exam - ✔✔Must be taken in-person at Prometric Center.
✔✔NCLE Practical Exam - ✔✔In-person exam, cannot be taken remotely.
✔✔ProProctor Application - ✔✔Software for remotely proctored examinations.
✔✔Technical Support - ✔✔Available during remote exam for troubleshooting.
✔✔Exam Scheduling Process - ✔✔Steps to book an exam at Prometric.
✔✔Confirmation Notice - ✔✔Document detailing exam registration information.
✔✔Exam Timer - ✔✔Continues during bathroom breaks in remote exams.
SOLUTIONS RATED A+
✔✔Lensometer - ✔✔Device for verifying lens power and parameters.
✔✔Thickness gauge - ✔✔Tool for measuring lens thickness accurately.
✔✔Oxygen permeability (Dk) - ✔✔Measure of lens material's oxygen transmission.
✔✔Transmissibility (Dk/t) - ✔✔Oxygen transmission per thickness of lens.
✔✔Wetting angle - ✔✔Angle indicating lens surface's affinity for moisture.
✔✔Silicone hydrogel - ✔✔Lens material with high oxygen permeability.
✔✔Central posterior curve (CPC) - ✔✔Base curve determining lens fit on cornea.
✔✔Peripheral curves - ✔✔Curves aiding lens alignment on the eye.
✔✔Wearing schedules - ✔✔Guidelines for daily or extended lens use.
✔✔Solution compatibility - ✔✔Compatibility of cleaning solutions with lens types.
✔✔Chemical disinfection - ✔✔Using chemicals to sanitize contact lenses.
✔✔Emergency responses - ✔✔Actions for patient lens insertion/removal issues.
✔✔Lens awareness - ✔✔Patient's perception of lens presence in eye.
✔✔Giant papillary conjunctivitis (GPC) - ✔✔Allergic reaction causing papillae on
conjunctiva.
✔✔Corneal edema - ✔✔Swelling of cornea due to fluid accumulation.
✔✔Contact Lens Associated Red Eye (CLARE) - ✔✔Redness caused by contact lens
wear.
✔✔Microbial Keratitis - ✔✔Infection of the cornea due to microorganisms.
✔✔Dimple veiling - ✔✔Surface irregularities in the lens affecting vision.
✔✔Fluorescein pattern evaluation - ✔✔Assessment of lens fit using fluorescein dye.
,✔✔Visual acuity - ✔✔Sharpness of vision measured under specific conditions.
✔✔Mucin Balls - ✔✔Mucus clumps affecting contact lens wearers.
✔✔Microbial Keratitis - ✔✔Infection of the cornea caused by microorganisms.
✔✔Acanthamoeba Keratitis - ✔✔Corneal infection from Acanthamoeba protozoa.
✔✔Dendritic Ulcer - ✔✔Corneal ulcer with a branching appearance.
✔✔Corneal Infiltrates - ✔✔Accumulation of immune cells in the cornea.
✔✔Corneal Dellen - ✔✔Localized thinning of the corneal stroma.
✔✔Corneal Staining - ✔✔Use of fluorescein to detect corneal damage.
✔✔Corneal Molding - ✔✔Alteration of corneal shape due to lens wear.
✔✔Gross Evaluation Techniques - ✔✔Methods to assess contact lens movement
visually.
✔✔Fluorescein Evaluation Procedures - ✔✔Tests using fluorescein for ocular surface
assessment.
✔✔Visual Acuity - ✔✔Clarity of vision measured by eye charts.
✔✔Overrefraction - ✔✔Refraction test to refine lens prescription.
✔✔Follow-Up Protocols - ✔✔Standard procedures for monitoring patient lens use.
✔✔Lens Parameters - ✔✔Specifications like size and curvature of lenses.
✔✔Record Retention - ✔✔Policies for maintaining patient records securely.
✔✔Patient Chart Documentation - ✔✔Methods to track patient health and lens
changes.
✔✔Product Inventory Techniques - ✔✔Methods for managing lens and tool supplies.
✔✔Disinfection Guidelines - ✔✔Regulations for cleaning contact lenses safely.
✔✔Prescriber Identification - ✔✔Determining the original prescriber of lenses.
, ✔✔Recall Procedures - ✔✔Steps for reminding patients about follow-ups.
✔✔Federal Guidelines - ✔✔Regulations from agencies like CDC and FDA.
✔✔Patient Confidentiality Regulations - ✔✔Laws protecting patient information privacy.
✔✔Cylinder Axis Tolerance - ✔✔Acceptable deviation for lens cylinder alignment.
✔✔Lens Power - ✔✔Measured in diopters (D), indicates lens strength.
✔✔Flatter Lens - ✔✔Lens with lower curvature, reducing magnification.
✔✔Steeper Lens - ✔✔Lens with higher curvature, increasing magnification.
✔✔Benzalkonium Chloride - ✔✔Disinfectant, not recommended for allergic patients.
✔✔Hydrogen Peroxide - ✔✔Recommended disinfectant for allergic contact lens
patients.
✔✔Chlorhexidine - ✔✔Antiseptic, not typically used for contact lenses.
✔✔Thimerosal - ✔✔Mercury-based disinfectant, rarely used now.
✔✔Prometric Testing Center - ✔✔Location for in-person examination scheduling.
✔✔Remote Proctoring - ✔✔Online exam supervision via camera and microphone.
✔✔Eligibility ID - ✔✔Required to schedule your examination appointment.
✔✔ABO Practical Exam - ✔✔Must be taken in-person at Prometric Center.
✔✔NCLE Practical Exam - ✔✔In-person exam, cannot be taken remotely.
✔✔ProProctor Application - ✔✔Software for remotely proctored examinations.
✔✔Technical Support - ✔✔Available during remote exam for troubleshooting.
✔✔Exam Scheduling Process - ✔✔Steps to book an exam at Prometric.
✔✔Confirmation Notice - ✔✔Document detailing exam registration information.
✔✔Exam Timer - ✔✔Continues during bathroom breaks in remote exams.
