From Vesalius, De humani corporis fabrica, Basel, 1543, p. 643.
a, Crystalline humour;
o, Albugineous humour;
c, Vitreous humour;
n, Cornea;
q, Conjunctiva;
m, Sclerotica;
g, Secundina;
h, Uvea;
k, Arachnoidea;
e, Retina.