Absence of scar formation in human donor cornea with prior laser in situ keratomileusis

Irreversible protein cross-linking of transglutaminases via ɛ-(γ-glutamyl)-lysine connections seem to be indicators for scaring in corneal wound healing. The absence of transglutaminases and their reaction product ɛ-(γ-glutamyl)-lysine in a LASIK-treated cornea supports the idea of missing scar tissue formation after LASIK surgery.