光学相干断层扫描（OCT）
眼科项目
≈ ¥200-500
(≈ $30-70)
大约15-30分钟
免责声明：本站为医疗服务机构，页面信息部分由AI协助制作。健康相关信息不构成医疗建议。如有任何疑问，请咨询医疗专业人士。详情见免责声明
项目介绍
光学相干断层扫描（OCT）在一般公立医院参考费用约¥140-400，三甲医院参考费用约¥200-500，常用于相关诊断评估与就医安排，费用随医院及地区有所差异。
主要用途
Primary clinical uses include early detection and longitudinal monitoring of glaucoma (via RNFL and GCIPL analysis), diagnosis and management of retinal diseases (e.g., diabetic retinopathy, age-related macular degeneration, macular holes, epiretinal membranes), assessment of optic nerve head morphology, evaluation of vitreoretinal interface disorders, neuro-ophthalmologic evaluation (e.g., optic neuritis, multiple sclerosis), and guiding intravitreal therapy decisions (e.g., anti-VEGF treatment for macular edema).
正常值范围
OCT is an imaging modality, not a quantitative blood or biochemical test; therefore, it does not have numerical 'normal ranges' in the conventional sense. Instead, interpretation relies on qualitative and semi-quantitative structural metrics: retinal nerve fiber layer (RNFL) thickness (normal: 70–120 µm, varies by age/location), macular ganglion cell-inner plexiform layer (GCIPL) thickness (normal: 65–95 µm), central subfield thickness (CST) in healthy eyes (normal: 200–270 µm), and choroidal thickness (normal: 200–350 µm, highly variable by age, ethnicity, refractive error). Normative databases embedded in OCT devices provide age- and location-matched percentile comparisons (e.g., values <5th percentile flagged as abnormal).
偏低可能原因
Retinal atrophy (e.g., advanced glaucoma, retinitis pigmentosa), optic nerve degeneration (e.g., optic neuritis sequelae, hereditary optic neuropathies), macular telangiectasia (MacTel), chronic diabetic macular ischemia, severe age-related macular degeneration (geographic atrophy), and post-surgical or post-traumatic retinal thinning.
偏高可能原因
Macular edema (e.g., diabetic macular edema, retinal vein occlusion, uveitic cystoid macular edema), vitreomacular traction syndrome, epiretinal membrane (ERM)-induced retinal thickening, choroidal neovascularization (CNV) with subretinal fluid, and inflammatory retinal infiltration (e.g., sarcoidosis, syphilitic chorioretinitis).