Avoid marijuana
Regularly smoking marijuana may screw up your vision, according to preliminary results from a French study. Study participants who used marijuana at least seven times a week showed a slight delay in the signalling of their retinal ganglion cells (RGCs) on the surface of the retina. These cells receive visual information, and any delay could suggest impaired vision.
Say ohm
Practicing yoga or another form of stress reduction every day can do more than keep you calm, cool and collected, it can also save your vision. “We know that stress can strain our vision and can also get in the way of making healthy choices that will benefit our overall health and vision such as eating a healthy diet and getting regular exercise,” Evans says.
Curb your sweet tooth
Eating too many refined carbs isn’t great for your overall health – and it could specifically mean trouble for your eyes. Eating high-glycaemic carbs may leave eyes more vulnerable to age-related macular degeneration (AMD). The World Health Organization (WHO) recommends that free sugars (added sugars as well as the sugar component of honey, fruit juice and concentrates) make up no more that 10 per cent of daily kilojoule intake.