The amino acid which leads to formation of eye pigment ommochromes is

The amino acid which leads to the formation of eye pigment ommochromes is Tyrosine and Tryptophan.
Ommochromes are synthesized from tryptophan, and in insects, these pigments may serve as a convenient way of removing excess tryptophan, an amino acid that can rise to toxic concentrations during metamorphic transitions.
They are responsible for yellow (oxidized xanthommatin) and red (reduced form) colours found in many invertebrates.