Uberon definition : A thick watery refractive medium that fills the space between the lens and the cornea[WP].;
Uberon synonym : aqueous humor; aqueous humour;
Uberon Homology note : (...) we reach the inescapable conclusion that the last common ancestor of jawless
and jawed vertebrates already possessed an eye that was comparable to that of extant
lampreys and gnathostomes. Accordingly, a vertebrate camera-like eye must have been
present by the time that lampreys and gnathostomes diverged, around 500 Mya (reference
1); Although the eye varies greatly in adaptative details among vertebrates, its basic
structure is the same in all. The human eye is representative of the design typical
for a tetrapod. (...) A watery aqueous humor fills the spaces in the eye in front
of the lens (...) (reference 2).[well established][VHOG];