for Teachers for Schools for Companies. Sulfur is a major mineral of the body that is part of certain amino acids and helps with many bodily processes. Learn what happens if you do not get enough of the mineral through your diet and what happens, if anything, when too much is ingested in this lesson.
Special-effect contacts (also called theatrical contact lenses, costume contacts and gothic contact lenses) are popular for Halloween and costume parties. These lenses typically are sold separately in individual glass vials and can range in price from $50 to more than $200 per lens.
How much contacts cost depends on many factors, including your contact lens prescription, the type of contacts you choose and where you buy them. Other factors that can affect your contact lens costs include manufacturer rebates, discounts for buying a year's supply at once and how frequently you replace your lenses. Because many factors affect contact lens cost and prices frequently change, it's difficult to describe lens costs accurately. But generally speaking, if you are nearsighted and are prescribed a popular brand of disposable soft contact lenses, these lenses frequently are sold at a retail price of $22 to $26 for a box of six lenses.