Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome
Introduction: These two eye movements have not been previously studied in this condition by this method. Methods: Five cases were studied. Both visual acuity and eye examination of anterior and posterior segments were normal. A Nicolet Nystar Plus system with chloride silver electrodes was used to r...
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2006
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10886281_v21_n1_p37_Melek http://hdl.handle.net/20.500.12110/paper_10886281_v21_n1_p37_Melek |
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paper:paper_10886281_v21_n1_p37_Melek2023-06-08T16:06:13Z Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome silver chloride adolescent anterior eye segment article correlation analysis Duane retraction syndrome electrooculography eye malformation eye movement female human male optokinetic nystagmus posterior eye chamber priority journal school child vision test visual acuity Abducens Nerve Adolescent Child Duane Retraction Syndrome Electrooculography Female Humans Male Nystagmus, Optokinetic Oculomotor Muscles Oculomotor Nerve Pursuit, Smooth Rhombencephalon Introduction: These two eye movements have not been previously studied in this condition by this method. Methods: Five cases were studied. Both visual acuity and eye examination of anterior and posterior segments were normal. A Nicolet Nystar Plus system with chloride silver electrodes was used to record the EOG. Results: Of the two systems under study, the smooth pursuit system showed the most relevant anomalies, both in the Duane's eye and in the apparently healthy eye. No correlation was found between the pursuit and optokinetic nystagmus disorders. In some cases, more significant abnormalities were observed in the clinically normal eye. Conclusions: The results clearly demonstrated a significant impairment of the pursuit system. This suggests that this motor disorder is not exclusively caused by hypoplasia or aplasia of the nucleus of the abducens nerve (VIth cranial nerve). These abnormalities might be related to a poor development of the rhombencephalon since both supramotor nuclei as well as the pathways of this system arise from this region of the embryonic brain. In the particular case of OKN, the supramotor nuclei have a different origin. Therefore, these systems might be affected differently. 2006 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10886281_v21_n1_p37_Melek http://hdl.handle.net/20.500.12110/paper_10886281_v21_n1_p37_Melek |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
silver chloride adolescent anterior eye segment article correlation analysis Duane retraction syndrome electrooculography eye malformation eye movement female human male optokinetic nystagmus posterior eye chamber priority journal school child vision test visual acuity Abducens Nerve Adolescent Child Duane Retraction Syndrome Electrooculography Female Humans Male Nystagmus, Optokinetic Oculomotor Muscles Oculomotor Nerve Pursuit, Smooth Rhombencephalon |
| spellingShingle |
silver chloride adolescent anterior eye segment article correlation analysis Duane retraction syndrome electrooculography eye malformation eye movement female human male optokinetic nystagmus posterior eye chamber priority journal school child vision test visual acuity Abducens Nerve Adolescent Child Duane Retraction Syndrome Electrooculography Female Humans Male Nystagmus, Optokinetic Oculomotor Muscles Oculomotor Nerve Pursuit, Smooth Rhombencephalon Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| topic_facet |
silver chloride adolescent anterior eye segment article correlation analysis Duane retraction syndrome electrooculography eye malformation eye movement female human male optokinetic nystagmus posterior eye chamber priority journal school child vision test visual acuity Abducens Nerve Adolescent Child Duane Retraction Syndrome Electrooculography Female Humans Male Nystagmus, Optokinetic Oculomotor Muscles Oculomotor Nerve Pursuit, Smooth Rhombencephalon |
| description |
Introduction: These two eye movements have not been previously studied in this condition by this method. Methods: Five cases were studied. Both visual acuity and eye examination of anterior and posterior segments were normal. A Nicolet Nystar Plus system with chloride silver electrodes was used to record the EOG. Results: Of the two systems under study, the smooth pursuit system showed the most relevant anomalies, both in the Duane's eye and in the apparently healthy eye. No correlation was found between the pursuit and optokinetic nystagmus disorders. In some cases, more significant abnormalities were observed in the clinically normal eye. Conclusions: The results clearly demonstrated a significant impairment of the pursuit system. This suggests that this motor disorder is not exclusively caused by hypoplasia or aplasia of the nucleus of the abducens nerve (VIth cranial nerve). These abnormalities might be related to a poor development of the rhombencephalon since both supramotor nuclei as well as the pathways of this system arise from this region of the embryonic brain. In the particular case of OKN, the supramotor nuclei have a different origin. Therefore, these systems might be affected differently. |
| title |
Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| title_short |
Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| title_full |
Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| title_fullStr |
Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| title_full_unstemmed |
Electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type I Duane's retraction syndrome |
| title_sort |
electro-oculography of smooth pursuit and optokinetic nystagmus eye movements in type i duane's retraction syndrome |
| publishDate |
2006 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10886281_v21_n1_p37_Melek http://hdl.handle.net/20.500.12110/paper_10886281_v21_n1_p37_Melek |
| _version_ |
1768545429451964416 |