Interference filters in the corneas of Diptera.
D001718:Birefringence; D003116:Color; D003315:Cornea / Q000033:anatomy & histology / Q000502:physiology*; D004175:Diptera; D008027:Light; D008433:Mathematics; D008854:Microscopy, Electron; D008858:Microscopy, Phase-Contrast; D008962:Models, Theoretical