human
I've noticed that my eyesight isn't as good as it used to be. Is it normal to lose your vision as you age?
assistant
Yes, it is common for people to lose their sight as they get older. As we age, our lens becomes less flexible and more prone to damage from ultraviolet light. This can cause the lens to become cloudy or develop cataracts. Cataracts are a clouding of the lens of the eye that can cause blurred vision.