The human eye and the colourful world (K-A)
Atmospheric refraction (K-A)
Defects of vision and correction (K-A)
Defects of vision and correction numerical (K-A)
Dispersion of light (K-A)
Dispersion of light in prism (K-A)
Power of accommodation (K-A)
Scattering of light and Tyndall effect (K-A)