But, you should set a boundary. Able to see at 3 m, but not at 6 m, what the normally sighted person sees at 60 m Less severe visual impairment is not captured by registration data, and its prevalence is difficult to quantify. The site screens its female users, only allowing those born outside of the United States and Canada to have profiles. Doris M Sheehan. If others eat them, your surroundings will be unpleasant.