Applicability of scanning laser ophthalmoscopy microperimetry on the fixation patterns of monofixation syndrome

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Abstract

Objective: To investigate the monocular fixation pattern and characteristics in patients with monofixation syndrome using scanning laser ophthalmoscopy (SLO) microperimetry (MP). Methods: Twenty-four patients older than 5 years who had 8 prism diopters (PD) or less of deviation after surgery were analyzed. The A group included 14 patients with infantile esotropia (ET), and 10 patients with acquired ET were assigned to B group. The monocular fixation pattern and characteristics of all patients were investigated using SLO MP. Central or mild eccentric fixation was defined as eyes with more than 50% of the fixation points located within the 2° diameter circle centred on the fovea. Results: Mean ages at the time of surgery were 27 (range, 11-48) months in A group and 75 (range, 27-166) months in B group. Mean ages at the time of MP examination were 117 (range, 64-210) months in A group and 106 (range, 64-167) months in B group. Mean distant and near angles of esodeviation were -1.7 PD (-8 to 8) and -2.7 PD (-8 to 6) in A group and 0.6 PD (-2 to 8) and -0.4 PD (-2 to 0) in B group. Central or mild eccentric fixation was present in 8 patients (57%) and moderate or severe eccentric fixation in 6 patients (43%) in A group. In contrast, all patients in B group had central or mild eccentric fixation (p = 0.022). Conclusions: Postoperative moderate eccentric or severe eccentric fixations were observed in 43% of patients with infantile ET in either eye; however, all patients with acquired ET showed central or mild eccentric fixation in both eyes.

Original languageEnglish
Pages (from-to)413-419
Number of pages7
JournalCanadian Journal of Ophthalmology
Volume48
Issue number5
DOIs
Publication statusPublished - 2013 Jan 1

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Ophthalmoscopy
Lasers
Esotropia

ASJC Scopus subject areas

  • Ophthalmology

Cite this

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title = "Applicability of scanning laser ophthalmoscopy microperimetry on the fixation patterns of monofixation syndrome",
abstract = "Objective: To investigate the monocular fixation pattern and characteristics in patients with monofixation syndrome using scanning laser ophthalmoscopy (SLO) microperimetry (MP). Methods: Twenty-four patients older than 5 years who had 8 prism diopters (PD) or less of deviation after surgery were analyzed. The A group included 14 patients with infantile esotropia (ET), and 10 patients with acquired ET were assigned to B group. The monocular fixation pattern and characteristics of all patients were investigated using SLO MP. Central or mild eccentric fixation was defined as eyes with more than 50{\%} of the fixation points located within the 2° diameter circle centred on the fovea. Results: Mean ages at the time of surgery were 27 (range, 11-48) months in A group and 75 (range, 27-166) months in B group. Mean ages at the time of MP examination were 117 (range, 64-210) months in A group and 106 (range, 64-167) months in B group. Mean distant and near angles of esodeviation were -1.7 PD (-8 to 8) and -2.7 PD (-8 to 6) in A group and 0.6 PD (-2 to 8) and -0.4 PD (-2 to 0) in B group. Central or mild eccentric fixation was present in 8 patients (57{\%}) and moderate or severe eccentric fixation in 6 patients (43{\%}) in A group. In contrast, all patients in B group had central or mild eccentric fixation (p = 0.022). Conclusions: Postoperative moderate eccentric or severe eccentric fixations were observed in 43{\%} of patients with infantile ET in either eye; however, all patients with acquired ET showed central or mild eccentric fixation in both eyes.",
author = "Youngsub Eom and Kim, {Seung Hyun} and Seong-Woo Kim and Cho, {Yoonae A.}",
year = "2013",
month = "1",
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doi = "10.1016/j.jcjo.2013.04.013",
language = "English",
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pages = "413--419",
journal = "Canadian Journal of Ophthalmology",
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T1 - Applicability of scanning laser ophthalmoscopy microperimetry on the fixation patterns of monofixation syndrome

AU - Eom, Youngsub

AU - Kim, Seung Hyun

AU - Kim, Seong-Woo

AU - Cho, Yoonae A.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Objective: To investigate the monocular fixation pattern and characteristics in patients with monofixation syndrome using scanning laser ophthalmoscopy (SLO) microperimetry (MP). Methods: Twenty-four patients older than 5 years who had 8 prism diopters (PD) or less of deviation after surgery were analyzed. The A group included 14 patients with infantile esotropia (ET), and 10 patients with acquired ET were assigned to B group. The monocular fixation pattern and characteristics of all patients were investigated using SLO MP. Central or mild eccentric fixation was defined as eyes with more than 50% of the fixation points located within the 2° diameter circle centred on the fovea. Results: Mean ages at the time of surgery were 27 (range, 11-48) months in A group and 75 (range, 27-166) months in B group. Mean ages at the time of MP examination were 117 (range, 64-210) months in A group and 106 (range, 64-167) months in B group. Mean distant and near angles of esodeviation were -1.7 PD (-8 to 8) and -2.7 PD (-8 to 6) in A group and 0.6 PD (-2 to 8) and -0.4 PD (-2 to 0) in B group. Central or mild eccentric fixation was present in 8 patients (57%) and moderate or severe eccentric fixation in 6 patients (43%) in A group. In contrast, all patients in B group had central or mild eccentric fixation (p = 0.022). Conclusions: Postoperative moderate eccentric or severe eccentric fixations were observed in 43% of patients with infantile ET in either eye; however, all patients with acquired ET showed central or mild eccentric fixation in both eyes.

AB - Objective: To investigate the monocular fixation pattern and characteristics in patients with monofixation syndrome using scanning laser ophthalmoscopy (SLO) microperimetry (MP). Methods: Twenty-four patients older than 5 years who had 8 prism diopters (PD) or less of deviation after surgery were analyzed. The A group included 14 patients with infantile esotropia (ET), and 10 patients with acquired ET were assigned to B group. The monocular fixation pattern and characteristics of all patients were investigated using SLO MP. Central or mild eccentric fixation was defined as eyes with more than 50% of the fixation points located within the 2° diameter circle centred on the fovea. Results: Mean ages at the time of surgery were 27 (range, 11-48) months in A group and 75 (range, 27-166) months in B group. Mean ages at the time of MP examination were 117 (range, 64-210) months in A group and 106 (range, 64-167) months in B group. Mean distant and near angles of esodeviation were -1.7 PD (-8 to 8) and -2.7 PD (-8 to 6) in A group and 0.6 PD (-2 to 8) and -0.4 PD (-2 to 0) in B group. Central or mild eccentric fixation was present in 8 patients (57%) and moderate or severe eccentric fixation in 6 patients (43%) in A group. In contrast, all patients in B group had central or mild eccentric fixation (p = 0.022). Conclusions: Postoperative moderate eccentric or severe eccentric fixations were observed in 43% of patients with infantile ET in either eye; however, all patients with acquired ET showed central or mild eccentric fixation in both eyes.

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VL - 48

SP - 413

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JO - Canadian Journal of Ophthalmology

JF - Canadian Journal of Ophthalmology

SN - 0008-4182

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