Colour blindness is actually an inaccurate term for colour perception deficiency. It is a lack of perceptual sensitivity to certain colours, and is most commonly due to an inherited condition. The most common form by far is congenital anomalous trichromacy, which, simply put, is an inherited condition in which there is partial or complete inability to perceive a wavelength of colour. This form of colour perception challenge affects more men than women since it is encoded on the X chromosome and is often passed from mother to son.
Our eyes are incredibly fascinating and complex. There is always something new to learn about them and in this article, we bring you some amazing facts about them.
The average blink lasts for about 1/10th of a second, making your eye muscles the fastest in your body.
Before any kind of activity or even just after waking up, it takes some time for most parts of your body to warm up to their full potential, but your eyes are on their “A game” 24/7.
Eyes heal incredibly fast. With proper care, it only takes about 48 hours for the eye to repair a corneal scratch.
Seeing is so crucial to how we function that it engages and involves up to 50% of the brain.
Newborns don’t produce tears. They make crying sounds, but the tears don’t start flowing until they are about 4-13 weeks old.
Around the world, about 39 million people are blind and roughly 6 times that many have some kind of vision impairment.
Doctors have yet to find a way to transplant an eyeball. The optic nerve that connects the eye to the brain is too sensitive to reconstruct successfully.
The cells in your eye come in different shapes. Rod-shaped cells allow you to see shapes, and cone-shaped cells allow you to see colour.
You blink about 12 times every minute.
Your eyes are about 1 inch across and weigh about 0.25 ounce.
Some people are born with two different coloured eyes. This condition is heterochromia.
Even if no one in the past few generations of your family had blue or green eyes, these recessive traits can still appear in later generations.
Each of your eyes has a small blind spot in the back of the retina where the optic nerve attaches. You don’t notice the hole in your vision because your eyes work together to fill in each other’s blind spot.
Out of all the muscles in your body, the muscles that control your eyes are the most active.
80% of vision problems worldwide are avoidable or even curable.