Extraordinary Eyeglasses!
The Amazing Invention That Helps Us See
Glasses Around the World 6
Who Invented Glasses? 8
Beryl and the Superpowered Spectacles (1) 16
Seeing
The Human Eye 18, Tears 20, Eyelids 21,
Sight—How it Works 24,
Seeing in 3D 26, Seeing in Color 27
Types of Vision
Myopia 28, Hypermetropia 30,
Presbyopia 31, Astigmatism 32,
Color Blindness 34, Strabismus 35, Blindness 36
Glasses
Why Wear Glasses? 38, At the Ophtalmologist’s 40,
At the Factory and the Optician’s 42, Eyeglasses and Lenses 44,
How to Handle and Clean Glasses 46
Find the Seven Differences 48
Beryl and the Superpowered Spectacles (2) 50
Types of Glasses
For Work 52, For Play 53,
Sunglasses 54, Snow Glasses 55,
In the Eyeglass Family 56, Magnifying Glasses 58
Beryl and the Superpowered Spectacles (3) 60
More Glasses
Glasses and Art 62, 3D Glasses 63,
Glasses of the Future 64, Glasses and Stereotypes 65
Sight and Animals 66
Spectacled Animals 71
Beryl and the Superpowered Spectacles (4) 72
Optical Illusions 74
Quiz 76
Answer Key 78
