The best-coloured contact lenses for Halloween are the ColourVUE Crazy Lens. ColourVUE Crazy Lens have unique designs and colours that completely cover the natural eye colour. With unique technology that guarantees oxygen permeability and safety, as the colourant is locked in the bottom layers of the lens, you can wear them for a really long time. These are the best selling contact lenses for Halloween, including the most popular: BlackOut Cateye Devil Red White Zombie This range of contacts also includes prescription white coloured contact lenses. ColourVUE Crazy Lens can be used daily but you have to replace them quarterly.