Lens replacement implants are small âintraocular lensesâ (IOLs) implanted inside your eye to restore focus after cataract surgery. When the natural lens inside your eye turns cloudy with age, it is called a cataract. After your cataract is removed, your ophthalmologist will implant a replacement lens often called a cataract lens.
An organic acid, taurine is derived from cysteine (an amino acid). As cysteine contains sulfur, & taurine is derived from cysteine, taurine is also classed as a sulfonic acid. The structural formula of taurine is C2H7NO3S. In 1827, German chemists Leopold Gmelin and Friedrich Tiedemann isolated taurine from ox bile. Bile is the digestive juice produced in the liver. Stored in the gallbladder, bile helps the body digest food, particularly fats.
Rating Newest Oldest. Best Answer: Travertine is a natural stone product it comes from Spain, Italy and Turkey and Egypt. It is literally is cut out of the side of a mountain, then it is cut into tiles then honed fillled and polished.Source(s): Studying the flooring industry for over 8 years.t can come from Italy, Spain, and anywhere that limestone, travertine or marble is quarried. The materials that form it either go to the travertine side or the marble side, depending on how long it has been forming.