Motorische und sensorische antworten bei fusion vertikaler disparitaten in verschiedenen konvergenzstellungen

Translated title of the contribution: Motor and sensory responses in fusion of vertical disparities in different convergence places

Heimo Steffen, Naoto Hara, Dale C. Roberts, David Samuel Zee

Research output: Contribution to journalArticle

Abstract

To study motor and sensory responses in vertical fusion at different angles of horizontal vergence in normal humans. Methods: The study included 12 normal subjects. A cross (+) extending 3.4 x 3.2°was presented dichoptically. Vertical disparity was introduced by changing the vertical position of the cross in front of one eye. The disparity was incremented by 0.08° every 8 s. Distance viewing was tested with 1 °of convergence demand, near vision with 6-15°convergence demand. Eye movements were recorded using three-axis search coils. Results: Vertical fusion capability was larger at near vision than at distance in 9 of 12 subjects. For the entire group, total vertical fusion capability (motor plus sensory response) differed between distance (mean 1.68°) and near (mean 2.39°). The motor component differed significantly between distance (mean 1.42°) and near (mean 2.13°). No difference in the sensory component was seen between distance (mean 0.26°) and near (mean 0.27°). Conclusions: Vertical fusion capability increases with convergences. This increase is mainly due to an increase of the motor response.

Original languageGerman
Pages (from-to)17-21
Number of pages5
JournalOphthalmologe
Volume97
Issue number1
DOIs
StatePublished - Jan 2000

Fingerprint

Eye Movements

Keywords

  • Convergence
  • Vertical fusion

ASJC Scopus subject areas

  • Ophthalmology

Cite this

Motorische und sensorische antworten bei fusion vertikaler disparitaten in verschiedenen konvergenzstellungen. / Steffen, Heimo; Hara, Naoto; Roberts, Dale C.; Zee, David Samuel.

In: Ophthalmologe, Vol. 97, No. 1, 01.2000, p. 17-21.

Research output: Contribution to journalArticle

@article{eb9cebed03344a38aeeccbd8a578b27c,
title = "Motorische und sensorische antworten bei fusion vertikaler disparitaten in verschiedenen konvergenzstellungen",
abstract = "To study motor and sensory responses in vertical fusion at different angles of horizontal vergence in normal humans. Methods: The study included 12 normal subjects. A cross (+) extending 3.4 x 3.2°was presented dichoptically. Vertical disparity was introduced by changing the vertical position of the cross in front of one eye. The disparity was incremented by 0.08° every 8 s. Distance viewing was tested with 1 °of convergence demand, near vision with 6-15°convergence demand. Eye movements were recorded using three-axis search coils. Results: Vertical fusion capability was larger at near vision than at distance in 9 of 12 subjects. For the entire group, total vertical fusion capability (motor plus sensory response) differed between distance (mean 1.68°) and near (mean 2.39°). The motor component differed significantly between distance (mean 1.42°) and near (mean 2.13°). No difference in the sensory component was seen between distance (mean 0.26°) and near (mean 0.27°). Conclusions: Vertical fusion capability increases with convergences. This increase is mainly due to an increase of the motor response.",
keywords = "Convergence, Vertical fusion",
author = "Heimo Steffen and Naoto Hara and Roberts, {Dale C.} and Zee, {David Samuel}",
year = "2000",
month = "1",
doi = "10.1007/s003470050004",
language = "German",
volume = "97",
pages = "17--21",
journal = "Der Ophthalmologe",
issn = "0941-293X",
publisher = "Springer Verlag",
number = "1",

}

TY - JOUR

T1 - Motorische und sensorische antworten bei fusion vertikaler disparitaten in verschiedenen konvergenzstellungen

AU - Steffen, Heimo

AU - Hara, Naoto

AU - Roberts, Dale C.

AU - Zee, David Samuel

PY - 2000/1

Y1 - 2000/1

N2 - To study motor and sensory responses in vertical fusion at different angles of horizontal vergence in normal humans. Methods: The study included 12 normal subjects. A cross (+) extending 3.4 x 3.2°was presented dichoptically. Vertical disparity was introduced by changing the vertical position of the cross in front of one eye. The disparity was incremented by 0.08° every 8 s. Distance viewing was tested with 1 °of convergence demand, near vision with 6-15°convergence demand. Eye movements were recorded using three-axis search coils. Results: Vertical fusion capability was larger at near vision than at distance in 9 of 12 subjects. For the entire group, total vertical fusion capability (motor plus sensory response) differed between distance (mean 1.68°) and near (mean 2.39°). The motor component differed significantly between distance (mean 1.42°) and near (mean 2.13°). No difference in the sensory component was seen between distance (mean 0.26°) and near (mean 0.27°). Conclusions: Vertical fusion capability increases with convergences. This increase is mainly due to an increase of the motor response.

AB - To study motor and sensory responses in vertical fusion at different angles of horizontal vergence in normal humans. Methods: The study included 12 normal subjects. A cross (+) extending 3.4 x 3.2°was presented dichoptically. Vertical disparity was introduced by changing the vertical position of the cross in front of one eye. The disparity was incremented by 0.08° every 8 s. Distance viewing was tested with 1 °of convergence demand, near vision with 6-15°convergence demand. Eye movements were recorded using three-axis search coils. Results: Vertical fusion capability was larger at near vision than at distance in 9 of 12 subjects. For the entire group, total vertical fusion capability (motor plus sensory response) differed between distance (mean 1.68°) and near (mean 2.39°). The motor component differed significantly between distance (mean 1.42°) and near (mean 2.13°). No difference in the sensory component was seen between distance (mean 0.26°) and near (mean 0.27°). Conclusions: Vertical fusion capability increases with convergences. This increase is mainly due to an increase of the motor response.

KW - Convergence

KW - Vertical fusion

UR - http://www.scopus.com/inward/record.url?scp=0034062909&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034062909&partnerID=8YFLogxK

U2 - 10.1007/s003470050004

DO - 10.1007/s003470050004

M3 - Article

C2 - 10663784

AN - SCOPUS:0034062909

VL - 97

SP - 17

EP - 21

JO - Der Ophthalmologe

JF - Der Ophthalmologe

SN - 0941-293X

IS - 1

ER -