Central dazzle in trigeminal sensory neuropathy

Gutrecht, José A.; Lessell, Irma M.; Zamani, Amir A.

doi:10.1212/wnl.40.4.722-a

Cited by 9 publications

(9 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Curiously, photophobia has been reported in children who were visually impaired by lesions of the occipital cortex, a finding that suggests a subcortical mechanism for visual discomfort (21). The report of dazzle secondary to lesions at the thalamus and at brainstem nuclei (1, 22) reinforces this view.…”

Section: Discussionmentioning

confidence: 73%

“…Specific symptoms consist of the several types of visual migraine aura. Non‐specific symptoms consist of glare, characterized by an increased sensitivity to light, manifested by the perception of brightness, visual blurring, and/or visual discomfort (5), and photophobia, a painful sensation to light stimuli, frequently associated with tearing and blepharospasm (1). Several authors have discussed the increased sensitivity of migraineurs to light (3, 5, 6, 8, 10, 11).…”

Section: Discussionmentioning

confidence: 99%

“…Photophobia is defined as a painful sensation secondary to the exposure of the eyes to light, usually associated with blepharospasm and lacrimation (1). Discomfort to light has been reported in five conditions: (a) diseases of the anterior aspect of the eye; (b) diseases of the vitreous and/or the retina; (c) acquired optic neuritis; (d) after trauma, surgery, or intracranial inflammation or infection; and (e) individual sensitivity to light (2).…”

Section: Introductionmentioning

confidence: 99%

“…Discomfort to light has been reported in five conditions: (a) diseases of the anterior aspect of the eye; (b) diseases of the vitreous and/or the retina; (c) acquired optic neuritis; (d) after trauma, surgery, or intracranial inflammation or infection; and (e) individual sensitivity to light (2). However, it seems that environmental light is the main precipitating factor, since photophobia is highly reduced at night or in the darkness (1).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Influence of Intense Light Stimulation on Trigeminal and Cervical Pain Perception Thresholds

Kowacs

Piovesan

et al. 2001

Cephalalgia

View full text Add to dashboard Cite

Thirty-three migraineurs and 23 healthy controls were submitted to pressure algometry before and after light-induced discomfort was elicited by progressive light stimulation in a monoblind fashion. Pressure algometries were performed on the emergence of the supraorbital, infraorbital, mental and greater occipital nerves, and over the temporal muscles, always throughout the same sequence and from right to left. Measurements were carried out before and immediately after light stimulation and after 10 min of the second algometry. The final result for each site measured at each time-point was the mean of the three measurements. Light stimulation was carried out progressively until light-induced discomfort was reported, to a maximum of 20,000 lux. A heat-blocking glass protected patients' eyes. Migraineurs presented significant and persistent drops in pain perception thresholds after light stimulation, at all sites tested (P = 0.002 to < 0.0001). These drops were not seen in controls, in whom, conversely, a less significant increase was seen on right infraorbital and left temporal muscle sites. Our results indicate that in migraineurs, light may have a relevant role in trigeminal and cervical pain perception thresholds.

show abstract

Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Influence of Intense Light Stimulation on Trigeminal and Cervical Pain Perception Thresholds

Kowacs

Piovesan

et al. 2001

Cephalalgia

View full text Add to dashboard Cite

show abstract

“…Findet sich bei Evaluation von Anamnese und Klinik des Gesichtsschmerzpatienten keine sichere Ursache, besteht kaum Zweifel an der Notwendigkeit einer radiologischen Diagnostik [5,17] …”

Section: Ergebnisseunclassified