Hi
My Daughter is just 1. She was diagnosed a month ago with Duanes and is now waiting for an op to straighten both eyes as they both point inwards. I have found that throughout her development she has always been a little behind what is "expected!". She doesn't crawl but bum shuffles a little. She doesn't really pull herself up either. I feel her eye condition plays a part in this but like you say all children are different. She is also deaf in one ear so I think her speech development is affected by that.
Kerri