As we get older, less light is able to enter out circadian system

Maturing eyesight and light deficiency

The retina receives less and less light from 40+ onwards

When we age, optical changes occur in the eye and less light is able to enter our visual, perceptual and circadian system.

The effects of maturing eyesight

Along with some of the more pronounced age-related visual diseases, such as cataracts and glaucoma, our eyesight is affected in many other ways as we age:

    • The structure of our eye changes – the lens become thicker, resulting in less clarity

    • Focusing on close up objects becomes difficult because the lens does not alter to accommodate the change in focus

    • We have a limited ability to respond to changes in brightness – our eyes adapt far more slowly to changes, such as going from a bright to a dark environment and vice versa

    • The yellowing of the lens alters how we see colour – colour no longer appears vivid

    • The lens scatters incoming light in the eye-globe leaving a ‘luminous veil’ over the perceived images

    • The scattering of light increases disability glare and reduces visual contrast between objects. As a result, the environment is perceived as blurred with muted colours and poor contrast

    • Lack of contrast can lead to tripping or falling over objects, which can cause a serious injury such as a broken hip

Find out more about the brilliance of biodynamic ligthing >>

Find out more about the health effects of light deficiency >>