Vitamin A helps produce photopigments and lubricates the eye. B vitamins support nerve cell function and protect myelin sheath. Vitamin C protects eyes from UV radiation and reduces cataract risk. Vitamin D supports eye health through anti-inflammatory properties. Vitamin E reduces free radicals and protects eye tissue
Ultraviolet radiation has wavelengths between 100 nm and 400 nm. Discovered by Johann Wilhelm Ritter in 1801. Not considered ionizing radiation but can break chemical bonds. About 10% of Sun's light output is UV radiation
Avobenzone is a yellow to light tan crystalline powder with a melting point of 83.5°C. It is a UV filter and absorbs UVA I, UVA II, and UVB wavelengths. The molecular formula is C20H22O3
Non-ionizing radiation lacks sufficient energy to ionize atoms or molecules. It is not a significant health hazard compared to ionizing radiation. Radiation with energies below 10 eV is generally considered non-ionizing
Sunbeam is a parallel beam of sunlight appearing from the Sun's position. Particle-scattered sunlight appears as parallel shafts separated by shadows. Scattering particles can be air molecules or particulates
UV radiation spans 10-400 nanometers, present in sunlight and produced by various sources. Sunlight contains about 10% UV, with atmosphere blocking 77% at zenith. UVB radiation is responsible for vitamin D production in humans