Slit lamp examination of the lens of the eye in a case of complicated cataract shows bread crumbs like appearance and a characteristic rainbow display of colours which replaces the normal achromatic sheen (polychromatic lustre). Complicated cataract results from a disturbance of nutrition of the lens due to inflammatory or degenerative disease of other pas of the eye, such as iridocyclitis, ciliary body tumors, choroiditis, degenerative myopia, anterior segment ischemia, retinitis pigmentosa or retinal detachment. Ref: Parsons' Diseases of the Eye By Ramanjit Sihota & Radhika Tandon 21st edn page 262