Thomas Krzizok

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Superior oblique myokymia (SOM) is a rare eye movement disorder presenting as uniocular rotatory microtremor due to intermittent contractions of the superior oblique muscle. Medical treatment usually fails to provide long-term benefit for the patient and has considerable side effects. Surgical alternatives including tenotomy or partial tenectomy of the(More)
BACKGROUND The head-tilt phenomenon (difference between the vertical deviations with an ipsilateral and contralateral head-tilt by 45 deg. each) occurring in patients with a superior oblique palsy has traditionally been explained by the lacking contraction of the superior oblique muscle within the synkinetic movement of ocular counterrolling. However, using(More)
PURPOSE To elucidate the etiology of an acquired, restrictive motility disorder in patients with high myopia. METHODS Thirty-three orbits were imaged using a Siemens Magnetom or Siemens Vision (both 1.5 Tesla) MRI (magnetic resonance imaging) scanner, applying a head coil. Coronal T1-weighted, spin-echo images were obtained. Orbits of three different(More)
PURPOSE To analyze the path of extraocular muscles (EOMs) quantitatively in highly myopic subjects with and without restricted eye motility versus control. To elucidate the cause of the acquired motility disorder in patients with high myopia. METHODS Thirty-three orbits were imaged using a Magnetom or Siemens Vision (Siemens, Erlangen, Germany; both 1.5(More)
BACKGROUND Patients suffering from pituitary adenomas and diseases of the chiasma typically show a bitemporal hemianopia. The residual undisturbed nasal visual fields of both eyes should have an extension of (at least) 120 degrees and are according to the actual German traffic rules (FeVAndV) for cars of the classes A, B, M, L and T. The intact half fields(More)
PURPOSE Positionally induced cyclotorsion could be an important factor concerning correction of astigmatism in refractive surgery. The method of binocular three dimensional infrared video-oculography (3D-VOG) was used to determine a possible influence of body position on cyclotorsion. METHODS 38 eyes (19 healthy subjects, median value of age 25.5) with(More)
AIMS To develop appropriate methods of eye muscle surgery in highly myopic patients with esotropia and hypotropia, with respect to the pathological findings in high resolution magnetic resonance imaging (MRI). METHODS 35 patients with unilateral or bilateral high myopia and strabismus--that is, axial length of the globe averaged 29.4 mm. Multiple coronal,(More)
  • T Krzizok
  • 2007
Botulinum toxin treatment was originally developed 25 years ago by Alan B. Scott to produce reversible weakening of extraocular eye muscles in humans (chemodenervation). The following uses are still helpful today in comparison with eye muscle surgery, prism applications etc.: Preoperative evaluation of possible postoperative diplopia in patients in whom(More)
The principle of the posterior fixation suture popularized by Cüppers in 1971 is to decrease the length of the lever arm. The latter depends on the radius of the globe. For geometric reasons the axial length should have an influence on the surgical effect. There are contradictory results on this problem. Therefore, we conducted a study including 112(More)
BACKGROUND This study was conducted to elucidate the etiology of the acquired, restrictive motility disorder in patients with severe myopia by magnetic resonance imaging (MRI) and intraoperative situs and to verify existing theories about strabismus to develop appropriate methods of eye muscle surgery. METHODS Thirty-five patients with unilateral or(More)