Everybody gets cataracts getting older.
Usually, for most people, age-related cataracts start to develop at the age of 70 years.
Your eyes water when they're dry.
Tears have three different components - fat, mucus and water. If they aren't exactly in their right quantities, the eyes could become dry. In such a manner, your brain responds to dryness by producing more tears.
Eyes heal quickly.
It will only take approximately 24-48 hours for the eye to heal a corneal scratch.
Newborns don't produce tears.
Scientists have yet to find a way to transplant an eyeball.
The optic nerve that connects the eyes to the brain, is very sensitive to successfully reconstruct.