Cerebral/Cortical Visual Impairment (CVI) is a neurological visual disorder. Vision loss or impairment due to brain injury or disease can occur at any point in the life-span. CVI can be found in children who function at levels equivalent to typical peers as well as in children with mild to severe disability.
For other uses, see Serengeti (disambiguation). Serengeti Eyewear is a high-end sunglasses designer brand owned by Bushnell Corporation. Their main focus is eye protection, of which the company researches and develops state of the art technology such as photochromic lenses, polarized lenses, spectral control, among other. 1 Overview.
Home > Miscellaneous Articles > Collector's Guide to Opera Glasses: History, Structure and More. By Merav Schejtman-Gilai. History of Binoculars. The first binoculars that were made of two parallel telescopes, were created in 1608 by the Dutch optician Hans Lipperhey.