Physics of the Eye

Objectives

• Show knowledge and understanding of the structure and function of the eye
• Show knowledge and understanding of the behavior of light and lenses
• Show knowledge and understanding of common defects of vision and their correction

Theory Presentations/Assessment - Structure of the Eye

• The Structure of the Eye
• How Does the Eye See?
• Photoreceptor Cells
• The Eye and the Brain
• Sensitivity of the Eye
• Spatial Resolution
• Persistence of Vision
• Summary

Theory Presentations/Assessment - Lenses

• Refraction and Wave Speed
• Lens Types
• Converging Lenses
• Ray Diagrams
• The Power of a Lens
• Calculating Power
• Magnification of Lenses
• Calculating Magnification
• Calculating Focal Length
• Summary

Theory Presentations/Assessment - Defects of Vision

• Myopia
• Hypermetropia
• Astigmatism
• Lens Formulas
• Correcting Myopia using Lenses
• Correcting Hypermetropia using Lenses
• Correcting Astigmatism
• Cylindrical Correction
• Prescriptions
• Summary

Activity - Vision Correction

• Students use an application to explore how a normal eye adjusts to keep an object in focus as the distance from the eye varies. They compare the normal eye with an eye with hypermetropia and an eye with myopia, examining what causes the defects and how lenses can correct these conditions.