Editing Pupil (section)

=== Diseases ===
A condition called ''bene dilitatism'' occurs when the optic nerves are partially damaged.  This condition is typified by chronically widened pupils due to the decreased ability of the optic nerves to respond to light.  In normal lighting, people affected by this condition normally have dilated pupils, and bright lighting can cause pain.  At the other end of the spectrum, people with this condition have trouble seeing in darkness.  It is necessary for these people to be especially careful when driving at night due to their inability to see objects in their full perspective.  This condition is not otherwise dangerous.