Table 5. Wavelength dependency in photosensitive diseases
Condition
Wavelengths (nm)
Ultra-Violet Radiation
Visible Radiation
UVB
(280-315)
UVA
(315-400)
Visible (blue)
(400-500)
Visible (red) (500-780)
Notes: Shaded areas indicate the regions of the spectrum that have been shown to induce the disorder. UVC has not been included as very little data are available on UVC sensitivity. This is because the main purpose of phototesting is to investigate sensitivity to wavelengths that are present in sunlight.