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.
Typical prices of contact lenses vary depending on the type of lens and the prescription required. For example, if your vision requires you to wear a contact lens to correct astigmatism, your lenses will be called toric lenses. Toric contact lenses are more expensive than the soft contacts used to correct nearsightedness and farsightedness.