Ã Basal body- anchors the flagellum to the cell wall and plasma membrane. Ã Hook- anchors the flagellum to the cell wall. Ã Filament- outermost region on the flagellum, composed of the protein flagellin. Ã *flagellum is made by flagelly :)
Keratoconus does not make people go blind. However the changes to the cornea can make it impossible for the eye to focus without eyeglasess or contact lenses. Keratoconus can be dangerous if laser vision correction surgery (LASIK or PRK) is performed on the eye.
And experts at the University of Connecticut found a link between cancer and the use of gadgets that emit blue light in the evenings and by night. In addition, Dr Sanchez-Ramos has found that exposure to blue light can damage the retina causing macular degeration, or partial blindness.