A prism is a shape with flat, transparent surfaces that bends light. Some people suffer from
double vision caused by their eyes not focusing on the same location. Adding a prism shape to
eyeglass lenses bends light travelling into the eye in such a way that it aligns what each eye
is seeing, eliminating the double image interpreted by the brain.
A prism is a shape with flat, transparent surfaces that bends light. Some people suffer from
double vision caused by their eyes not focusing on the same location. Adding a prism shape to
eyeglass lenses bends light travelling into the eye in such a way that it aligns what each eye
is seeing, eliminating the double image interpreted by the brain.