Colored plastic over the page is supposed to assist in reading as well. Blue and yellow or tan are supposed to work. I tried blue for awhile and it seemed to help a lot but changing the colored sheet page to page was a pain. On ereaders I use a tan background and it helps a lot for ease of reading.
Previously I only read on a have to basis. It dawned on me that I read online constantly. I ordered a Kindle and have been reading bunches since.
In high school in the 50's I was classed as not too smart. It was many years later that I took a test online that gave indication of the problem - I answered almost all of the questions in a positive manner. What a revelation - there was a reason I didn't like to read :-)