Fig. 14. Oblique view of lens of the eye showing the location of Rabl's lamellae (upper diagram). Lamellae of the lens likened to a diffraction grating (lower diagram). d, spacing between the lamellae; θ, angle between diffracted and incident waves; λ, wavelength of light. (Miller D, Benedek G: Intraocular Light Scattering. Springfield, IL, Charles C Thomas, 1973)