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.
It usually develops in one eye first and then later in the other eye. With severe keratoconus, the stretched collagen fibers can lead to severe scarring. If the back of the cornea tears, it can swell and take many months for the swelling to go away.This often causes a large corneal scar.t usually develops in one eye first and then later in the other eye. With severe keratoconus, the stretched collagen fibers can lead to severe scarring. If the back of the cornea tears, it can swell and take many months for the swelling to go away.