What the eyes have is a complex network of components that allow a person to see. Although the eyes are taken for granted, given how much and how often we use them, the way they work is rather interesting. This is because humans actually view the world upside down. This is due to the fact that the front part of the eyes are curved.
As a result, this creates an upside down image on the retina that the brain flips the right way up.
Away from the science, it’s very important to look after the eyes.
There are a number of conditions that can affect them, but some of these can be avoided.
Risk factors for eye conditions include one particular habit.
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Smoking is a risk factor for most cancers and other conditions.
Eyesight is not exempt from its impact.
The NHS say that smoking can increase a person’s risk of developing age related macular degeneration that affects the middle part of sight.
Symptoms include blurred vision in one or both eyes.
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Furthermore, it recommends “looking at something 20ft away, for 20 seconds, every 20 minutes”.
Regular blinking was also stated as helping eye health as humans blink less when looking at a screen.
Other tips included sitting near a window during the day if a book or magazine was going to be read and wearing sunglasses if it was sunny as the low sun can be dazzling for some.
For more information on looking after your eyesight contact the NHS or consult with your GP with any concerns.