Some parents may find their children have crossed eyes by chance and get worried. When they go to the hospital, often one of them is a pseudo-internal strabismus, caused by a wide distance from the inner canthus, which will improve in appearance as they grow older, and if they grow to be adults and still affect their appearance, surgery can be considered. Some children who are examined by a doctor and do have internal strabismus should be treated promptly before they are delayed.