Are writing systems like Chinese and hieroglyphics resilient to dyslexia?

Factual Questions
1

Or, is dyslexia relevant with those scripts? Does it depend upon how densely the characters are packed?

2

Link to column: Is it possible to be dyslexic in Chinese? - The Straight Dope

The conclusion is that Chinese dyslexics have a different problem from English dyslexics, but the column was published in 2005.

ETA from the column: “…there are fewer Chinese dyslexics…” (about 7% versus 15% or 1.5% versus 5%), so Chinese is more resilient in that sense.

3

Thinking about ancient languages and their scripts, Hittite must have been a bitch to master. Basically, you’d have to have a thorough knowledge of three distinct languages and their writing systems: the obsolete Sumerian, the Babylonian and the native Nesili (all written in cuneiform). Any single compound word might incorporate elements from each one of them.

4

Thanks. As you may recall, my niece has dayslexia. It’s going to be interesting to see her parents’ reactions to the suggestion that she learns Chinese!