ABSTRACT

Although the human eye is constantly subjected to both artifi - cial and sunlight, damage rarely occurs from this light exposure (Roberts 2005) unless the eye is aged (Roberts 2001; Andley 2001; Balasubramanian 2005) or the light is particularly intense (Sliney 2005). However, many drugs, dietary supplements, cosmetics, and diagnostic dyes have the potential to induce damage to the lens and retina in the presence of ambient light (Fraunfelder and Fraunfelder 2004; Roberts 2004). This danger is enhanced with increased exposure to intense light because of high altitudes (Hu et al. 1989), outdoor employment (Sliney 2001), sun bed use, or phototherapy for seasonal depression (Roberts et al. 1992).