Color blindness is more appropriately called color deficiency.
There are two different color pathways or channels in the vision system, one controls red and green, the other blue and
yellow.
When dilated, the pupil can become ten times its normal size.
The image that is projected onto your retina is reversed and upside-down in reference to what you actually see.
There are no photoreceptors at the optic nerve head, this is why it is called the "blind spot".
Just because some contact lenses are approved to be slept in for weeks, doesn't make it a good idea for everyone.
Glaucoma can strike anyone at any age. It's not just a problem for the more mature population.
If you get a chip of metal in your eye, the sooner you have it removed, the faster your eye will be healed.
Metal debris can leave a toxic rust ring in your cornea.
Eye Facts
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