Outline The Visual System Physiology Ametropias Ophthalmic Lenses Properties of Light UV,Visible,and Infrared Spectrums Reflection,Refraction,Absorption ·Aberrations Lens Designs ·Fitting Basic Optical Formulas  The Visual System ▪ Physiology ▪ Ametropias  Ophthalmic Lenses ▪ Properties of Light ▪ UV, Visible, and Infrared Spectrums ▪ Reflection, Refraction, & Absorption ▪ Aberrations ▪ Lens Designs ▪ Fitting  Basic Optical Formulas