Search for dissertations about: "Ocular torsion"

Found 5 swedish dissertations containing the words Ocular torsion.

  2. 1. Visually induced ocular torsion

    Author : Ulrika Sverkersten; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : There has been some controversy whether ocular torsion (eye rotation around the line of sight) is induced in response to a tilted visual scene. The aim of this thesis was to investigate if ocular torsion can be induced by viewing a tilted visual scene and to evaluate the effect of different stimuli parameters on the torsional response. READ MORE

  4. 2. Ocular counter-rolling during head tilt

    Author : Tony Pansell; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Eye movements; Ocular torsion; VOR; head tilt; Vision.;

    Abstract : When tilting the head towards the shoulder there are numerous mechanisms influencing on the generation and maintenance of ocular counter-roll. Each of these mechanisms has its own temporal and spatial characteristics which influences on the counter-rolled eye position. READ MORE

  5. 3. Visual influences on vestibular compensation and postural control

    Author : Anna Hafström; Lund näs- och halssjukdomar Öron-; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Otorhinolaryngology; audiology; auditive system and speech; Otorinolaryngologi; Medicin människa och djur ; Vestibular schwannoma; Alcohol intoxication.; Medicine human and vertebrates ; Vestibular deafferentation; Visual-vestibular interactions; Subjective visual horizontal and vertical; Visual dependence; Utriculus; Balance; Vision; audiologi; hörsel- och talorganen;

    Abstract : This thesis aimed to investigate visual-vestibular interactions in healthy subjects and in patients with a well defined unilateral vestibular lesion (vestibular schwannoma before and six months after translabyrinthine surgery). Visual information is particularly important for balance control during perturbed stance. READ MORE

  6. 4. On Cyclodeviation - Strategies for Investigation, Management and quality of Life

    Author : Sara Flodin; Göteborgs universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Strabismus; Orthoptics; Cyclodeviation; Quality of Life;

    Abstract : Introduction: Cyclodeviation is a form of strabismus that is not externally visible. It is measured subjectively and in degrees, as incyclotorsion or excyclotorsion. The perception of subjective tilting does not always accompany ocular torsion, and vice versa; and patients rarely complain specifically about cyclodiplopia. READ MORE

  7. 5. Multisensory control of gaze stabilization : from brainstem to bedside

    Author : Tobias Wibble; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Without the continuous updates provided by the vestibular and visual systems, our world would appear blurry and unstable. In order to allow the retina to reliably record incoming light in a meaningful way, the vestibulo-ocular reflex (VOR) and optokinetic reflex (OKR) aim to stabilize our gaze on visual features. READ MORE