幼小児におけるOCT3000TM黄斑部網膜厚測定の再現性

Reproducibility of value for macular thickness measured by optical coherence tomography（OCT3000TM）in children

要約　目的：光干渉断層計（OCT）で小児の黄斑部網膜厚を測定した結果の報告と再現性の検討。対象と方法：3～9歳（平均4.8±1.6歳）の小児30眼を対象として黄斑部網膜厚を測定した。全例が1.2の矯正視力で，屈折は平均－2.91±0.92Dであった。測定にはOCT3000^TMのfast macular thicknessプログラムを用い，2か月以内に同一検者が再測定した。結果：プログラムから算出されたfovea minimum，fovea，inner retinal，outer retinalの各部位での測定値には，初回と2回目の測定で差はなく，強い相関があった。結論：3～9歳の小児では，OCT3000^TMで測定した黄斑部網膜厚の測定値には良好な再現性がある。

Abstract.　Purpose：To report the outcome and reproducibility of macular thickness in children as measured by optical coherence tomography（OCT）. Cases and Method：This study was made on 30 eyes of children aged from 3 to 9 years,average 4.8±1.6 years. All had corrected visual acuity of 1.2. The refraction averaged －2.91±0.92 diopters. Macular thickness was measured by an OCT3000^TM using its fast macular thickness program. Measurement was repeated within 2 months by the same examiner. Results：There were high correlations between 2 measurements using fovea minimum,fovea,inner retinal and outer retinal programs. Conclusion：Thickness of the macula show high reproducibility in children aged from 3 to 9 years when measured by OCT3000^TM.