Archery Innovations... Home of the Anchor Sight...leader in Peep-less technology since 2003 allowing archers to forgo the peep and open their field of view to the target, acquire the target faster in all lighting conditions and shoot with award winning accuracy not using a peep sight.As our eyes age, the fluid in them becomes less clear, the muscles that shape the eye to focus get a little weaker, and the iris, the aperture that adjusts for optimum vision in different lighting conditions, gets lazy. All this doesn't have much effect on our vision under perfect conditions, but it contributes to problems relating to low light and focal distance. When you discover you need reading glasses, these conditions will have begun, making it more difficult to see things clearly especially when using a Peep sight and will reduce your archery sighting IQ. Using the Anchor Sight will not only bring you back from this but will increase your accuracy beyond what it was before you needed reading glasses.