Thanks for all the perspectives on the masking/development issue. In addition to the parent concerns, the thread has been a good forum for us to share our professional concerns.The discussion has prompted me to wonder why aren't we looking at studies on children with visual impairment and blindness? What is their language development and cognition process? I realize the situations are not identical, but we may be missing out on resources and the opportunity to learn from those with relevant experiences.I appreciate Amy Gottschamer pointing out how many of us have amped up our facial expressions and body gestures, with good results. I wonder if this is also helping children who have difficulty "reading" subtle social cues. Is there perhaps more we can learn from ASL (American Sign Language,) which integrates pronounced gesture and facial expression into the language itself?