[Clinical aspects of strabismus with insufficiency of the superior oblique muscle]. / Klinicheskie osobennosti kosoglaziia s nedostatochnost'iu verkhnei kosoi myshtsy.

Clinical features of vertical strabismus with superior oblique muscle insufficiency were studied in 123 patients. A complex of clinical methods was used and clinical evaluation of these methods made. Various forms of strabismus with superior oblique muscle insufficiency were detected. Four degrees of superior oblique muscle weakness were distinguished corresponding to four degrees of inferior oblique muscle hyperfunction.