Ultra-orthodox Jewish men who don't enjoy contact with the opposite sex have started to wear new glasses that blur their vision.

The ultra-Orthodox community's unofficial ''modesty patrols'' have started selling spectacles with blur-inducing stickers on their lenses, which still enables them to see clearly for a few metres but after that their sight is blurry.

The glasses are on sale for a ''modest'' price of $6, and other offerings to help the community have also been devised such as shields and hoods that block peripheral vision.