Multicoated contact lens for bimanual vitreous surgery without endoillumination.

We developed a new multicoated contact lens for use with the bimanual vitrectomy technique. The new lens is made of quartz, and its multicoated surface has properties that decrease light reflection and increase light absorption. The lens is placed on the cornea, and the coaxial light from the operating microscope alone enables surgeons to obtain a clear image of the retinal surface. This new vitrectomy contact lens is very useful for the treatment of eyes with proliferative membranes and allows surgeons to perform vitrectomy by using both hands.