But too much iron or problems with utilizing, storing, or transporting iron properly can lead to vision loss in the form of conditions such as age-related macular degeneration and hyperferritinemia syndrome, according to recent research findings. Iron is a necessary mineral for many of the bodys functions, including vision. The macula, a small portion of the retina which is responsible for sharp and detailed vision, deteriorates over time when the retinal pigment epithelium (RPE) surrounding the macula oxidizes triggering an inflammatory response. While smoking, poor diet, and lack of exercise typically contribute to oxidation of the retina, research has found that iron may also increase a persons risk of AMD, according. Attachment, posted on Mon, June 20, 2016 by Kayla Wiles.