We all know that as we age, our eyesight can deteriorate, leading to vision loss (and needing glasses). However, as you can expect, genetics can also play a role in this process. Certain genes have been associated with vision loss, including those involved in developing and maintaining the retina (the part of the eye responsible for detecting light and colour). One such gene is the ABCA4  gene, which codes for a protein involved in transporting waste products out of the retin