Welcome to the Open ABO Study Guide. The Open ABO Study Guide is the product of the Open ABO Study Project, a communty effort to build an open and free study guide for the American Board of Opticianry certification exam. While the study guide is not yet complete, currently available materials may still be useful for exam preparation.

If you would like to participate or contribute to the project please, logon to the Open ABO Study Project forum or contact Keith Benjamin. 

Open ABO Study Guide Outline 

Occular Anatomy

• Basic Structures of the Eye (Status: D,I)
• Refractive Errors (Status: D,I)
• Extraocular Muscles (Status: D,I)
• Occular Anatomy Review Questions

Basic Optical Principles

• Light and the Electromagnetic Spectrum (Status: D,I)
• Index of Refraction (Status: W)
• Lens Power (Status: D)
• Prism (Status: D)
• Prism by Decentration (Status: D)
• Basic Optical Principles Review Questions 

Lens Form

• Lens Form: Sphere, Cylinder, and Prism (Status: D, I)
• Aspheric Lenses (Status: D)
• Transposing Prescriptions (Status: D)
• Lens Form Review Questions

Lens Options

• Lens Materials (Status: D)
• Anti-Reflective Coating (Status: D)
• Photochromic Lenses (Status: D)
• Polarized Lenses (Status: D)
• Scratch, UV, and Mirror Coatings
• Multifocal Lenses
• Progressive Addition Lenses
• Occupational Lenses
• Slab Offs
• Cataract Lenses (Status: D)
• Lens Options Review Questions

Frames

• Boxing system (Status: D, E, I)
• Frame Styles and Materials (Status:W)
• Frame Selection
• Frame Fitting and Adjustments (Status: W)
• Frames Review Questions

Tools

• Lensometer (Status W)
• Hand tools (Status: W)
• Tools Review Questions

Regulations and Standards

• ANSI Standards
• Liability and Duty to Warn
• Regulations and Standards Review Questions

*Status: W=Working; D=drafted; I=illustrated; R=reviewed; E=edited