Acta Medica Okayama volume73 issue6
2019-12 発行

Foveal Structural Analysis of Amblyopic Eyes with Two Types of Fixation Behavior by Spectral-Domain Optical Coherence Tomography

Kishimoto, Fumiko Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Phamaceutical Sciences
Fujii, Chiaki Division of Ophthalmology, Ibara Municipal Hospital
Okanouchi, Toshio Division of Ophthalmology, Kurashiki Medical Center
Ohtsuki, Hiroshi Department of Ophthalmology, Okayama University Graduate School of Medicine, Dentistry and Phamaceutical Sciences
Publication Date
2019-12
Abstract
We used spectral-domain optical coherence tomography (SD-OCT) to compare the foveal and parafoveal structures of 19 subjects aged 16-58 years (8 men, 11 women): 6 amblyopic patients with eccentric fixation, 5 amblyopic patients with central fixation, and 8 visually normal controls. We obtained foveal horizontal line scans using SD-OCT on all of the patients and controls. The total and layer thicknesses at foveal areas were analyzed. The mean (SD) ages of individuals in the eccentric fixation, central fixation, and control groups were 43.0 (13.9), 42.2 (16.3), and 38.5 (15.5) years, respectively. We observed no significant differences in the foveal or parafoveal retinal thicknesses at 500 and 1,500 μm from the foveal center among the 3 groups or between the amblyopic and fellow eyes. No significant differences were observed in the thickness of the ganglion cell complex layer or outer retinal layer at 500 and 1,500 μm from the foveal center among the three groups or between the two eyes. Overall, our SD-OCT analyses revealed no characteristic structural change in foveal regions in amblyopic eyes irrespective of the fixation behavior.
Document Type
Original Article
Keywords
foveal structure
strabismic amblyopia
optical coherence tomography
eccentric fixation
Link to PubMed
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