Study for the NCLE National Contact Lens Certification Exam while on the go. Questions and content based on exam specifications provided by the ABO NCLE. Study topics: Anatomy, Instrumentation, Medical Conditions, Basic Optics, Standards and Regulations, and Fitting. Study at your own pace. Earn unique study badges. Choose Test Mode and take a 5 - 15 - 30 minute test with questions from all different categories. If you only have 5 minutes you can take a 5 minute test. Adjust test time to your preference. Save questions to study later. Supplement exam prep and test yourself over and over again.