Kids wonder about eyeglasses, and why people have to wear eyeglasses. This should shed some light on the subject. Learners develop an understanding about eyelgasses, and also other visual aids, such as magnifying glasses. In fact, they...

Students notice how various images and colors update constantly as they are affected by factors such as distance, background and lighting. They also examine how optometrists developed a standard to evaluate eyesight.

Students discover the four parts of the eye are the most instrumental in the task of producing images that are discernible by the brain.

A brief introduction to the physics side of farsightedness, and how lenses correct this vision defect.

A brief introduction to the physics side of nearsightedness, and how lenses correct this vision defect.