Exam Prep

ABO - NCLE and State Boards Exam Prep - Staff Training Modules

Preparing for the ABO, NCLE or state licensing exam? Need to train your staff on basic fundamentals of optics or exam procedures? These comprehensive online modules let you learn at your own pace, and take practice exams right from your home or office!

If at first you don't succeed... go back and take it again! There is no time limit or expiration for viewing the material, and you can take the practice exams as often as necessary to achieve a passing or perfect score!

Once you purchase the Spectacle Lens Review or the Contact Lens Review, you will have access to it whenever you like, as often as you like.

ABO Spectacle Review By Sam Winnegrad

ONLY $99.00 for (6) 1 Hr. Modules

Includes practice exams!

Module 1

  • Metric system;
  • Focal lengths;
  • Lens powers;
  • Transposition;
  • Astigmatism classification.

Module 2

  • Optical crosses;
  • Finding the power at a non-prescribed axis;
  • Spherical equivalent;
  • Calculating reading and intermediate Rx.

Module 3

  • Vertical decentration;
  • Decentration;
  • Minimum blank size;
  • Image jump.

Module 4

  • Splitting prism;
  • Prism direction;
  • Prentice's rule (applied to spherical Rx's);
  • Prentice's rule (applied to cylindrical Rx's).

Module 5

  • Vertex distance;
  • Slab off;
  • Common lens values;
  • Index of refraction.

Module 6

  • Fibrous tunic;
  • Vascular Tunic;
  • Retina, Tear film;
  • Eye chambers;
  • Extra-ocular muscles;
  • Refractive errors.

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All prices are shown in USD (US Dollars)


These review modules and any accompanying self-assessment examination are not a prerequisite for taking the ABO or NCLE certification examination given by the American Board of Opticianry / National Contact Lens Examiners. The ABO/NCLE does not select, administrate, endorse or approve these or any other review modules or self-assessment examinations. Taking these review modules and/or taking and passing the accompanying self-assessment examination does not guarantee passing the ABO or NCLE exams.