It looked at vegetables such as carrots, lettuce and spring onions which were grown close to or in contact with the soil and which were sold to be consumed without any further cooking or preparation other than light washing or scraping.
In 1978 the U.S. Federal Trade Commission required optometrists to release eyeglass prescriptions, allowing such chains as Lenscrafters to spring up, but it has thus far refused to make a comparable move with contact lenses.