The present Patent Landscape Report (PLR) forms part of WIPO's Patent Landscape Reports series. The PLRs started as one of the outputs of WIPO's Development Agenda project "Developing Tools for Access to Patent Information", (DA_19_30_31_01) described in document CDIP/4/6, adopted by the Committee on Development and IP in 2009. The project document foresaw the preparation of PLRs in the areas of food and agriculture, public health, environment and energy, and disabilities, on topics of particular interest foremost to developing and least developed countries. This report is the first one prepared in the area of disabilities. It aims to provide patent-based evidence on the available technologies, patenting and innovation trends in the area of assistive devices and technologies for visually and hearing impaired persons.