Postoperative changes in spatial localization following exotropia surgery

Tae Eun Lee, Seung Hyun Kim, Yoonae A. Cho

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Purpose: To measure changes in spatial localization following exotropia surgery using a computer touch-screen method of measurement. Methods: Enrolled in the study were 60 exotropia patients, all of whom had undergone corrective muscle surgeries under general anesthesia: 37 patients had undergone unilateral lateral rectus or bilateral lateral rectus muscle recession procedures (recession group) and 23 patients had undergone unilateral lateral and medial rectus muscle resection (R&R), or unilateral medial rectus resection only (resection group). We evaluated spatial localization by having patients point to targets on a computer touch-screen before surgery, and 1 day and 1 month after surgery. The pointing error, Δp, is defined as the difference between the actual location of the target and the pointed-to location of the target by unsigned value, was recorded as the mean of five tests. We compared the extent of postoperative changes in Δp between the two groups. Results: The mean Δp before surgery did not differ statistically between the two groups (p = 0.93). One day after surgery, however, the postoperative change in Δp of the resection group compared with that of the recession group (2.0plusmn;.7° and 0.4plusmn;.5°, respectively) was significant (p = 0.01 and p = 0.86 respectively). Conclusions: The ability for spatial localization is decreased in patients immediately following medial rectus resection, but is regained by 1 month following surgery.

Original languageEnglish
Pages (from-to)210-214
Number of pages5
JournalCurrent Eye Research
Volume38
Issue number1
DOIs
Publication statusPublished - 2013 Jan 1

Fingerprint

Exotropia
Ambulatory Surgical Procedures
Muscles
General Anesthesia

Keywords

  • Exotropia
  • Pointing error
  • Proprioceptor
  • Spatial localization
  • Surgery

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience

Cite this

Postoperative changes in spatial localization following exotropia surgery. / Lee, Tae Eun; Kim, Seung Hyun; Cho, Yoonae A.

In: Current Eye Research, Vol. 38, No. 1, 01.01.2013, p. 210-214.

Research output: Contribution to journalArticle

Lee, Tae Eun ; Kim, Seung Hyun ; Cho, Yoonae A. / Postoperative changes in spatial localization following exotropia surgery. In: Current Eye Research. 2013 ; Vol. 38, No. 1. pp. 210-214.
@article{090448e74bb2493187bbf118b1af78f3,
title = "Postoperative changes in spatial localization following exotropia surgery",
abstract = "Purpose: To measure changes in spatial localization following exotropia surgery using a computer touch-screen method of measurement. Methods: Enrolled in the study were 60 exotropia patients, all of whom had undergone corrective muscle surgeries under general anesthesia: 37 patients had undergone unilateral lateral rectus or bilateral lateral rectus muscle recession procedures (recession group) and 23 patients had undergone unilateral lateral and medial rectus muscle resection (R&R), or unilateral medial rectus resection only (resection group). We evaluated spatial localization by having patients point to targets on a computer touch-screen before surgery, and 1 day and 1 month after surgery. The pointing error, Δp, is defined as the difference between the actual location of the target and the pointed-to location of the target by unsigned value, was recorded as the mean of five tests. We compared the extent of postoperative changes in Δp between the two groups. Results: The mean Δp before surgery did not differ statistically between the two groups (p = 0.93). One day after surgery, however, the postoperative change in Δp of the resection group compared with that of the recession group (2.0plusmn;.7° and 0.4plusmn;.5°, respectively) was significant (p = 0.01 and p = 0.86 respectively). Conclusions: The ability for spatial localization is decreased in patients immediately following medial rectus resection, but is regained by 1 month following surgery.",
keywords = "Exotropia, Pointing error, Proprioceptor, Spatial localization, Surgery",
author = "Lee, {Tae Eun} and Kim, {Seung Hyun} and Cho, {Yoonae A.}",
year = "2013",
month = "1",
day = "1",
doi = "10.3109/02713683.2012.713151",
language = "English",
volume = "38",
pages = "210--214",
journal = "Current Eye Research",
issn = "0271-3683",
publisher = "Informa Healthcare",
number = "1",

}

TY - JOUR

T1 - Postoperative changes in spatial localization following exotropia surgery

AU - Lee, Tae Eun

AU - Kim, Seung Hyun

AU - Cho, Yoonae A.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Purpose: To measure changes in spatial localization following exotropia surgery using a computer touch-screen method of measurement. Methods: Enrolled in the study were 60 exotropia patients, all of whom had undergone corrective muscle surgeries under general anesthesia: 37 patients had undergone unilateral lateral rectus or bilateral lateral rectus muscle recession procedures (recession group) and 23 patients had undergone unilateral lateral and medial rectus muscle resection (R&R), or unilateral medial rectus resection only (resection group). We evaluated spatial localization by having patients point to targets on a computer touch-screen before surgery, and 1 day and 1 month after surgery. The pointing error, Δp, is defined as the difference between the actual location of the target and the pointed-to location of the target by unsigned value, was recorded as the mean of five tests. We compared the extent of postoperative changes in Δp between the two groups. Results: The mean Δp before surgery did not differ statistically between the two groups (p = 0.93). One day after surgery, however, the postoperative change in Δp of the resection group compared with that of the recession group (2.0plusmn;.7° and 0.4plusmn;.5°, respectively) was significant (p = 0.01 and p = 0.86 respectively). Conclusions: The ability for spatial localization is decreased in patients immediately following medial rectus resection, but is regained by 1 month following surgery.

AB - Purpose: To measure changes in spatial localization following exotropia surgery using a computer touch-screen method of measurement. Methods: Enrolled in the study were 60 exotropia patients, all of whom had undergone corrective muscle surgeries under general anesthesia: 37 patients had undergone unilateral lateral rectus or bilateral lateral rectus muscle recession procedures (recession group) and 23 patients had undergone unilateral lateral and medial rectus muscle resection (R&R), or unilateral medial rectus resection only (resection group). We evaluated spatial localization by having patients point to targets on a computer touch-screen before surgery, and 1 day and 1 month after surgery. The pointing error, Δp, is defined as the difference between the actual location of the target and the pointed-to location of the target by unsigned value, was recorded as the mean of five tests. We compared the extent of postoperative changes in Δp between the two groups. Results: The mean Δp before surgery did not differ statistically between the two groups (p = 0.93). One day after surgery, however, the postoperative change in Δp of the resection group compared with that of the recession group (2.0plusmn;.7° and 0.4plusmn;.5°, respectively) was significant (p = 0.01 and p = 0.86 respectively). Conclusions: The ability for spatial localization is decreased in patients immediately following medial rectus resection, but is regained by 1 month following surgery.

KW - Exotropia

KW - Pointing error

KW - Proprioceptor

KW - Spatial localization

KW - Surgery

UR - http://www.scopus.com/inward/record.url?scp=84872030882&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872030882&partnerID=8YFLogxK

U2 - 10.3109/02713683.2012.713151

DO - 10.3109/02713683.2012.713151

M3 - Article

C2 - 22870922

AN - SCOPUS:84872030882

VL - 38

SP - 210

EP - 214

JO - Current Eye Research

JF - Current Eye Research

SN - 0271-3683

IS - 1

ER -