(1) (txtwriter.com) Each ignites its own debate, so I will focus primarily on the role of the appendix in the human body. The appendix is present in many primates, and primarily (pun intended) used to aid in the digestion of cellulose. Located between the small and large intestines, the appendix and neighboring caecum slows down the body's digestive process.
Products / Optics / Optical Lenses / UV Lenses. UV Lenses. UV Lenses are used in many collimation, focusing, or laser applications that operate in, or extend into, the ultraviolet spectrum. UV Lenses are optical lenses consisting of a single or multiple elements that have been designed for optimal performance when used with ultraviolet light.
Contact Lenses. A soft contact lens is a hydrophilic (water loving) disc that floats on your cornea. Like prescription glasses, a contact lens is specifically shaped to focus light into the retina of your eye. But, unlike glasses, which you can see over and under, contact lenses cover your cornea, correcting your entire field of vision.