研究目的
To measure retinal nerve fiber layer (RNFL) volume in normal children using spectral domain optical coherence tomography (SD-OCT) and to analyze the relationship between RNFL volume and thickness.
研究成果
This study reports RNFL volume measured from RNFL thickness map analysis in normal children. These data regarding RNFL volume of normal children may provide useful information for diagnosis and monitoring of pediatric glaucoma.
研究不足
The study did not include factors that could influence RNFL volume measurements such as optic nerve size and shape, and axial length. The sample size was relatively small.
1:Experimental Design and Method Selection:
The study included 79 eyes of 54 normal children aged between 4 and 15 years. All participants underwent ocular examination and 3D-disc scanning using SD-OCT. RNFL volume was calculated between
2:5 and 5 mm diameter circles using the length, width, and height of each pixel derived from the RNFL thickness map with Matlab software. Sample Selection and Data Sources:
Participants were normal children with visual acuity ≥
3:8, intraocular pressure ≤ 21 mmHg, and refractive error between +0 and -0 diopters. List of Experimental Equipment and Materials:
SD-OCT (3D OCT-2000, Software Version7.21; Topcon Corp., Tokyo, Japan), Matlab? (MathWorks Inc., Natick, MA, USA), and fundus camera (VX-10 fundus camera; Kowa, Tokyo, Japan).
4:21; Topcon Corp., Tokyo, Japan), Matlab? (MathWorks Inc., Natick, MA, USA), and fundus camera (VX-10 fundus camera; Kowa, Tokyo, Japan). Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: Participants underwent pupil dilation, fundus photography, and SD-OCT scanning. RNFL volume was calculated from the RNFL thickness map.
5:Data Analysis Methods:
Statistical analysis was performed using SPSS software (version 21.0, IBM Corp., Armonk, NY, USA) to analyze the correlation between RNFL volume and thickness.
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