 A toothache of his "eye" tooth causes "eye" problems for Martin: he can t see. Tim takes him to see his dentist, although Martin doesn t have typical human teeth. He needs dental expertise and some dental powder without the dentist actually examining him, which is why dentist-phobic Tim takes the place in the dental chair. The remedy causes Martin s eye teeth to go crossed eyed, as does his vision. The only answer is tooth extraction.