All of us use several methods and tools to read, write, share and obtain information including watches, calendars, sign boards, printed books, magazines and words on a computer or mobile phone screen (via internet). We use tools like pens, pencils or a computer keyboard to write. 
Similarly, not all of us prefer accessing information through reading. Some prefer hearing or seeing the same information over a video than reading about it. Hence, the medium of accessing information varies, irrespective of whether it’s a person with disability or a non-disabled individual.  
A person with vision impairment may also use a variety of literacy tools and choose a medium of accessing information that matches his or her needs and which he/she can use very easily and effectively. A functional vision assessment will help determine the level of the impairment and what size print he or she would be able to
see.  
There are various options/modes to obtain/read printed information. These range from using optical aids like magnifiers, audiobooks or through tactile script- braille, which is traditionally embossed on heavy paper but is today available in input-and- output electronic devices called refreshable braille displays. Machines are available to convert visual information such as graphical images and diagrams into a tactile format. Let’s go through each of these tools in detail.