NCLE Contact Lens Certification Prep
Prepare for the NCLE (National Contact Lens Examiners) certification exam. 125 questions, 2-hour time limit — taken by many opticians alongside the ABO.
Study Materials
Free study guides for all 7 NCLE exam domains
Mock Tests
NCLE-level practice exams
Practice by Domain
Focus on specific NCLE topics
7 NCLE Exam Domains
Pre-Fitting Evaluation
Ocular anatomy for contact lens wear, patient history, and pre-fitting measurements.
Diagnostic Fitting & Evaluation
Soft and rigid gas-permeable lens fitting, and evaluating fit (movement, centration, coverage).
Lens Materials & Design
Contact lens materials, parameters, designs, and wearing modalities.
Instrumentation
Keratometer, slit lamp, radiuscope, and other instruments used in contact lens practice.
Patient Education & Handling
Insertion and removal, care systems, wearing schedules, and compliance.
Follow-Up & Problem Solving
Complications, troubleshooting poor fit or comfort, and lens modifications.
Regulations & Standards
FDA classification, the Fairness to Contact Lens Consumers Act, and prescription requirements.
About the NCLE Exam
- - 125 multiple-choice questions (100 scored + 25 unscored), 2-hour time limit
- - Computer-based, administered by ABO-NCLE
- - Covers pre-fitting, diagnostic fitting, materials, instrumentation, patient education, follow-up, and regulations
- - Commonly taken alongside the ABO — bundle both with the Complete plan