Characterising eye movement dysfunction in myalgic encephalomyelitis/chronic fatigue syndrome
http://link.springer.com/article/10.100 ... 013-2431-3" onclick="window.open(this.href);return false;
Caracterización de la disfunción del movimiento ocular en EM
Re: Caracterización de la disfunción del movimiento ocular en EM
Lo pego aquí por si alguien quiere sar el traductor:
Abstract
Background
People who suffer from myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) often report that their eye movements are sluggish and that they have difficulties tracking moving objects. However, descriptions of these visual problems are based solely on patients’ self-reports of their subjective visual experiences, and there is a distinct lack of empirical evidence to objectively verify their claims. This paper presents the first experimental research to objectively examine eye movements in those suffering from ME/CFS.
Methods
Patients were assessed for ME/CFS symptoms and were compared to age, gender, and education matched controls for their ability to generate saccades and smooth pursuit eye movements.
Results
Patients and controls exhibited similar error rates and saccade latencies (response times) on prosaccade and antisaccade tasks. Patients showed relatively intact ability to accurately fixate the target (prosaccades), but were impaired when required to focus accurately in a specific position opposite the target (antisaccades). Patients were most markedly impaired when required to direct their gaze as closely as possible to a smoothly moving target (smooth pursuit).
Conclusions
It is hypothesised that the effects of ME/CFS can be overcome briefly for completion of saccades, but that continuous pursuit activity (accurately tracking a moving object), even for a short time period, highlights dysfunctional eye movement behaviour in ME/CFS patients. Future smooth pursuit research may elucidate and improve diagnosis of ME/CFS.
Abstract
Background
People who suffer from myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) often report that their eye movements are sluggish and that they have difficulties tracking moving objects. However, descriptions of these visual problems are based solely on patients’ self-reports of their subjective visual experiences, and there is a distinct lack of empirical evidence to objectively verify their claims. This paper presents the first experimental research to objectively examine eye movements in those suffering from ME/CFS.
Methods
Patients were assessed for ME/CFS symptoms and were compared to age, gender, and education matched controls for their ability to generate saccades and smooth pursuit eye movements.
Results
Patients and controls exhibited similar error rates and saccade latencies (response times) on prosaccade and antisaccade tasks. Patients showed relatively intact ability to accurately fixate the target (prosaccades), but were impaired when required to focus accurately in a specific position opposite the target (antisaccades). Patients were most markedly impaired when required to direct their gaze as closely as possible to a smoothly moving target (smooth pursuit).
Conclusions
It is hypothesised that the effects of ME/CFS can be overcome briefly for completion of saccades, but that continuous pursuit activity (accurately tracking a moving object), even for a short time period, highlights dysfunctional eye movement behaviour in ME/CFS patients. Future smooth pursuit research may elucidate and improve diagnosis of ME/CFS.
VINCIT QUI SE VINCIT (Vence quien se vence a sí mismo)
EX NOTITIA VICTORIA (En el conocimiento reside el triunfo) 12
(tomado prestado de un amiguete... gràcies, Fran)
___________
EX NOTITIA VICTORIA (En el conocimiento reside el triunfo) 12
(tomado prestado de un amiguete... gràcies, Fran)
___________
Re: Caracterización de la disfunción del movimiento ocular en EM
Yo, desde luego, he tenido estos problemas (desde que no trabajo, no, qué curioso, verdad?), y también se me torcía el ojo hacia adentro completamente sólo, además con muchísimo dolor, como si me estuvieran clavando un pincho
Después, la sensación de que mis ojos se movían "a saltos" duraba horas... y aparte de ser ligeramente doloroso (me quedaban como "agujetas" en los ojos), era muy incómodo intentar ver cualquier cosa.

VINCIT QUI SE VINCIT (Vence quien se vence a sí mismo)
EX NOTITIA VICTORIA (En el conocimiento reside el triunfo) 12
(tomado prestado de un amiguete... gràcies, Fran)
___________
EX NOTITIA VICTORIA (En el conocimiento reside el triunfo) 12
(tomado prestado de un amiguete... gràcies, Fran)
___________