1.   Opacity of the eye lens can be induced by deficiency of certain vitamins.

2.   In July, Santa Barbara, California-based Mentor Corp. won the backing of an FDA panel for its implantable flexible eye lens for patients undergoing cataract surgery.

3.   Early this year, Pharmacia bought biotech company Hoefer Scientific Instruments and Iovision Inc, a maker of artificial eye lenses used in cataract surgery.

4.   Intraocular lens devices are used in surgical procedures that involve removing the human eye lens and replacing it with a small sterile implant.