Meanings of reading difficult in English

At any rate, he found reading difficult, and the paper slid away.

The language, too, is obscure, and the lack of punctuation renders reading difficult to novices.

I didn't realise it at the time, but I am slightly dyslexic and I found reading difficult.

Macrons, breves, umlauts etc have been removed from the body of the text since they were very obtrusive and made reading difficult.

It was a long letter, too long to be read until she was at leisure, and written in a straggling hand that made reading difficult.

Irlen syndrome is a light-processing problem which results in high levels of "visual noise" and a range of symptoms that may include reading difficult(...)