角膜内皮细胞计数
眼科项目
≈ ¥20-50
(≈ $3-7)
大约15-30分钟
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项目介绍
角膜内皮细胞计数在一般公立医院参考费用约¥15-40，三甲医院参考费用约¥20-50，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
Assessing corneal endothelial health prior to intraocular surgery (e.g., cataract, refractive, or corneal transplantation); diagnosing and monitoring endothelial dystrophies (e.g., Fuchs); evaluating corneal decompensation risk; guiding surgical candidacy (e.g., suitability for phakic IOLs or endothelial keratoplasty); postoperative follow-up after corneal or anterior segment procedures; differentiating causes of corneal edema.
正常值范围
Typical corneal endothelial cell density (ECD) in healthy adults aged 20–40 years ranges from 2,500 to 3,500 cells/mm²; declines gradually with age (e.g., ~2,000–2,500 cells/mm² at age 60–70). Coefficient of variation (CV) <30% and percentage of hexagonal cells (hexagonality) >50–60% are considered normal morphometric indicators.
偏低可能原因
Fuchs endothelial corneal dystrophy, pseudophakic bullous keratopathy (post-cataract surgery), iridocorneal endothelial (ICE) syndrome, congenital hereditary endothelial dystrophy (CHED), chronic intraocular inflammation (e.g., uveitis), prolonged contact lens wear (especially overnight), corneal trauma or surgery (e.g., penetrating keratoplasty, DSEK/DMEK complications)
偏高可能原因
Measurement artifact (e.g., image misalignment, poor focus, specular microscope calibration error), early-stage corneal edema causing apparent cell crowding, post-inflammatory endothelial recovery (rare and transient), technical overestimation due to inclusion of non-endothelial structures (e.g., Descemet’s membrane folds), normal physiological variation in young individuals (<20 years, occasionally up to 4,000–4,500 cells/mm²)