

Your eyes and UV light
7. What's up ahead?
The lighting system in a motorcycle shares similarities with the human eye in terms of functionality and safety. Both systems are important for perception and visibility in their respective environments. In a motorcycle, the lighting system typically consists of a combination of headlights, taillights, and turn signals (or indicators in the UK). These elements work together to illuminate the road ahead, make the motorcycle visible to other road users, and indicate the rider's intentions.
Similarly, the human eye relies on its intricate system to interpret the surrounding world. The cornea and lens of the eye can be compared to the motorcycle's headlights, focusing incoming light onto the retina, which acts like a sensor capturing visual information. The iris, functioning like a dynamic aperture, adjusts to control the amount of light entering the eye, akin to the motorcycle's adaptive lighting system -(if it has one fitted). Additionally, just as turn signals on a motorcycle convey the rider's intention to change direction, eye movements signal shifts in attention and gaze.
The lighting system in a motorcycle and the human eye also contribute to safety by enhancing overall awareness in their respective environments.
Motorcycles lights have improved dramatically over the past few years, and it is now possible to retrofit older lighting systems with newer ones. If you drive at night, it's definitely worth updating if you can.
Guard against fading light bulbs
When it comes to the eye, smoking and UV light are a major contributor to eye damage. A healthy diet, managing your screen use, and regular check-ups to make sure you wearing the best eyeglasses are all useful things to consider.
Make sure when buying sunglasses that they protect your eyes properly from all forms of UV light. Tinted glasses without UV protection (cheap ones) actually have a damaging effect on your eyes as they encourage pupils to dilate, letting more harmful UV rays into your eyes without any protection. You'll notice that aircraft pilots' windows are all heavilly tinted and UV protected., In addition to all this, pilots wear high UV protection sunglasses. They're definitely not for show!
More caution is required when riding at night because the eyes take longer to adapt to the constantly changing light levels, on both back roads and motorways. A reduction in speed is always a good idea. Once exposed to bright light, it takes the eyes (more specifically the rod cells within them) several minutes or longer to re-adjust to darkness depending on the level of light exposure.
Of course, all of the above becomes more difficult and takes longer as the lighting system ages.
Some useful additives for your classic
Vitamins: A, C, E
Minerals: Lutein & Zeaxanthin, Zinc (Zn) Omega-3 fatty acids, Copper (Cu), Beta-Carotene
Read labels before taking and check with your doctor if required. Older classics may require different additives compared with newer models.
In short: make sure you wear good glasses, do not block your vison with dark tinted visors if they're not UV protected, (wear sunglasses with UV protection instead) and always keep yourself visible. Keep goggles and visors clean, scratch free and in good condition. Don't ride at night with a tinted visor.
