Effects of acupuncture on foveation characteristics in congenital nystagmus

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Effects of acupuncture on foveation characteristics in congenital nystagmus.

AIMS/BACKGROUND To examine the effects of acupuncture at the sternocleidomastoid muscles on foveation characteristics in congenital nystagmus. METHODS Six patients with congenital nystagmus (CN) received a series of treatments consisting of two needles inserted into each sternocleidomastoid, stimulated by tapping gently every 5 minutes, for 20 minutes per session. Their eye movements were rec...

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EVects of acupuncture on foveation characteristics in congenital nystagmus

Aims/background—To examine the eVects of acupuncture at the sternocleidomastoid muscles on foveation characteristics in congenital nystagmus. Methods—Six patients with congenital nystagmus (CN) received a series of treatments consisting of two needles inserted into each sternocleidomastoid, stimulated by tapping gently every 5 minutes, for 20 minutes per session. Their eye movements were record...

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The effects of afferent stimulation on congenital nystagmus foveation periods

Visual acuity in congenital nystagmus (CN) patients is related primarily to the duration of "foveation periods", during which the image of the target is relatively stationary in the foveal area. Thirteen individuals with CN were studied to test the hypothesis that somatosensory stimulation (vibration or electrical) of either the forehead or the neck damps CN and improves visual acuity. We ident...

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The effects of increased visual task demand on foveation in congenital nystagmus

Commonly, when an individual with congenital nystagmus (CN) performs a visually demanding task their nystagmus intensifies and their visual acuity decreases, probably due to poorer foveation. However, the relationship between fixation attempt and nystagmus waveform has never been quantified. In this study 14 CN subjects viewed a Landolt C of varying orientation and size. They indicated its orie...

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Foveation period and waveforms of congenital ocular nystagmus.

Normal visual acuity requires a stationary retinal image on the fovea. If fixation instabilities cause movement of the retinal image across the fovea for a few degrees, visual acuity is diminished. Nystagmus as the fixation instability, consequently, may impair vision. Period of foveation is the area in the wave form, i.e. a brief period of time when the eye is still and is pointed at the objec...

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ژورنال

عنوان ژورنال: British Journal of Ophthalmology

سال: 1998

ISSN: 0007-1161

DOI: 10.1136/bjo.82.2.115