A lens is a piece of transparent material shaped such that it bends parallel rays of light. The shape of a lens is a segment of a sphere, plane, or a cone (parabola, hyperbola, or ellipse). The bending of light causes the rays to cross, forming an...

A lens is an optical device with perfect or approximate axial symmetry which transmits and refracts light, concentrating or diverging the beam. A simple lens is a lens consisting of a single optical element. A compound lens is an array of simple lenses...

Automotive supplier Donnelly Corp. is considering selling a chunk of its high-technology, plastic optical lens subsidiary after absorbing an earnings blow to its annual financial results. The Holland, Mich.-based supplier plans to restructure or reposition Donnelly Optics Corp., a wholly owned subsidiary,...

ABSTRACT The Scan Tox(TM) System is a method for monitoring lens optical quality (focus or lack of focus) in culture conditions, which mimic conditions inside the eye. The ocular lens is an ideal organ for long-term culture experiments because it has no direct...

Government officials are warning people to throw away a contact lens solution after an investigation linked it to a rare eye infection.The warning concerns AMO Complete Moisture Plus Multi-Purpose Solution, used for cleaning and storing soft contact lenses, said a spokeswoman for the U.S. Centers...

Bausch & Lomb Inc., already humbled by a worldwide recall of its ReNu with MoistureLoc contact lens solution, said Tuesday it is recalling about 1.5 million bottles of ReNu MultiPlus because trace amounts of iron could cause the cleaner to lose effectiveness earlier than normal.The...