Stimming is a repetitive behaviour performed by aspergers and autistic children because it "feels good" or calms them. I've covered stimming before (see: What is Stimming and what does it feel like ). In today's post, I'm going to cover a very specific type of stimming - visual stimming. Visual stimming can often confuse parents and lead them in the wrong direction - to optometrists for eye examinations or to other specialists to discuss facial tics. Instead, a few well aimed questions at your child may put the record straight. My History When I was a child, I used to engage in visual stimming quite a bit. It wasn't until much later, after I had been doing it increasingly for years, that my mother asked me what was going on. Until that time, I was not aware that when engaging in the activity, I presented anything at all to the outside world. In reality however, my visual Stimming made me look like I had a very bad squint or like my eyesight was very poor.