Drugs will assume a growing importance in the treatment of nystagmus and strabismic sensorial anomalies, but side effects should first be eliminated. New procedures have been proposed for abnormal head tilt in patients with nystagmus and inferior rectus complications. On the other hand, many classic procedures are reported to effectively manage inferior oblique muscle overaction and dissociated vertical deviation (DVD). Unfortunately, little has been found in the current literature about the action of these procedures on torsion. Association of DVD with vertical anatomical deviation (Brown's syndrome, “A” patterns, plagiocephaly) gives rise to intriguing clinical pictures. Critical analysis of the articles is increasingly arduous because it has been statistically demonstrated that 82% of the articles reviewed in three ophthalmological journals presented statistical analysis using eight different methods.