Volk Double Aspheric 20D Lens
The clarity and precision of the Volk 20D BIO Lens make it a gold standard. It offers excellent field of view and magnification for the 20 D Lens. And with a working distance of 50 mm, you'll have a comfortable experience manipulating the lens. In addition to serving as a first line diagnosis tool, this lens is ideal for high-level central retinal examinations.