Comparison of Visual Pathology Secondary to the Light of Polymerization: Bibliographic Review of the 5 Main Types of Light in the Market

Light as a form of electromagnetic energy has a dual wave particle nature. When describing the effects of light absorbed by a photoreceptor, the behavior of light particles is more important. The portion of the electromagnetic spectrum that interacts with the eye is wider than the portion that is used for phototransduction. It includes wavelengths of ultraviolet light (100-400nm), visible light (400-460nm) and infrared (76010000nm). Several subgroups of wavelengths can be classified for ultraviolet light: UVA (315-400nm), UVB (260-315nm) and UVC (100-260nm). In the same way three groups are described for infrared light. The visible light is called short length (blue), length (green) and long wavelength (red) according to the spectra of maximum absorption of the visual pigments of ocular knowings [1-12].