In chapter 3 of The Story of My Life, Helen Keller and her family travel to see a respected "oculist" Dr. Chisolm in the hope that he can help them in their quest to restore or partially restore Helen's sight, even though they know that their case is basically "hopeless." Helen has been blind and deaf since she was nineteen months old when she suffered an illness and now she has tantrums "almost hourly" as she is unable to communicate what she wants, and tears and arguments inevitably result.
Helen's aunt makes her a doll to take on the train to Baltimore to see Dr. Chisolm. However, even a child with as vivid an imagination as Helen's would have difficulty pretending that the doll's face resembles a face at all. It is interesting to note that Helen is adamant that the doll must have eyes and then loses interest once the eyes are stitched into place.
Helen's lack of interest could be because, by making sure the doll has eyes, she has effectively fixed the doll. Now it is no longer like her and so does not needs Helen's help; nor can it provide any insight into the life of a blind child.