May is barely a month away. Are you prepared for your NCLE Exam? This is a good summary of what you should know going in to your CLRE test.

You need to know your eye anatomy.

  • Parts of Eye
  • Corneal Layers
  • Adnexa Oculi
  • Tear Film

You need to know your pathology.

  • Corneal Problems
  • Pupil Related
  • Keratoconus
  • Keratitis
  • PMD
  • Eyelid Pathology
  • Conjunctival Problems
  • Epithelial Problems
  • Fusion Problems
  • Medication Interaction
  • UV Damage
  • Contact Lens Complications

You need to know your instruments

  • Keratometer
  • Radiuscope
  • Biomicroscope
  • Burton Lamp
  • Pachymeter
  • Topographer

You need to know your diagnostic procedures

  • Fluorescein staining
  • BUT
  • Schirmer
  • Taking Patient Measurements

You need to know your lens materials

  • Terminology
  • Rigid lens materials and properties
  • Soft Lens Materials and Classifications
  • Dk and Dk/t
  • Wetting Angle
  • Modulus

You need to know your design configurations

  • Base Curve Configurations
  • Millimeter to Radius Conversion
  • Sagital Depth
  • Peripheral/Intermediate Curves
  • Edge Design

You need to know your contact lens types

  • Cosmetic Contacts
  • Therapeutic Contacts
  • Size Classification
  • Multifocal Contacts
  • Specialty Lenses

You need to know your Fitting Philosophies

  • Interpalpebral Fitting
  • Lid Attachment Fitting
  • Soft Lens Fitting
  • Toric Fitting
  • Keratoconus Fitting
  • Orthokeratology

You need to understand the Lens/corneal relationship

  • Lacrimal Lens
  • K Values
  • On K, Steeper than K, Flatter than K
  • K Values and Vertex Distance
  • Dynamic Fluorescein Patterns

You need to know verification and ANSI standards

  • Verification Tools and Procedures
  • ANSI Standards
  • Rigid Lens Modification

You need to know Patient Instruction

  • Insertion and Removal
  • Lens Care
  • Follow up Care

You need to know laws and procedures

  • SOAP
  • Legal and Malpractice
  • Fairness to Contact Lens Consumers Law
  • Triage and Scheduling

You still need to know your basic ABO material

  • Visual Errors
  • Geometric Optics
  • Light Theory

Practice Tests Can Help You Prepare

The practice exams here at are unlimited. There are THOUSANDS of questions in our database and every test you take will be unique. You’ll get a wide variety of questions of all levels of difficulty. You’ll never get the same question twice!

What you will also get is the answers to any of the questions that you missed, and explanations for those answers. If you get one of our questions wrong, you’ll learn from it. We even do the math out for you!

Keep on studying. And let us help you Pass Your Optical Boards!