Additionally, a person with normal vision has a total visual field of 180 degrees for peripheral vision while someone who is legally blind only has the ability to see objects that are located within a 20 degrees visual field.
Most people love cheese, whether in chunks or strips, or melted on bread for a grilled sandwich. It is a part of the cuisine of nearly every culture, and variations on the theme are legion. Cheese is usually categorized into four types: soft, semi-soft, semi-hard and hard.
There are many types of cheese, with around 500 different varieties recognized by the International Dairy Federation, more than 400 identified by Walter and Hargrove, more than 500 by Burkhalter, and more than 1,000 by Sandine and Elliker.