Remón L, Cristóbal J A, Castillo J, Palomar T, Palomar A, Pérez J
Department of Ophthalmology, Hospital Clínico Universitario, Zaragoza, Spain.
Invest Ophthalmol Vis Sci. 1992 Oct;33(11):3080-3.
To establish a standard of normality, the authors studied the central and peripheral (superior, inferior, nasal, and temporal) corneal thickness of 152 healthy, white race, full-term newborns (304 eyes) between 1 and 6 days old, using ultrasonic pachymetry. The mean central corneal thickness (CCT) was 585 +/- 52 microns (ranging from 446-706 microns). The mean peripheral corneal thickness (PCT), significantly thicker than CCT (P = 0.0001), was: superior (SCT) 696 +/- 55 microns, inferior (ICT) 744 +/- 62 microns, nasal (NCT) 742 +/- 58 microns, and temporal (TCT) 748 +/- 55 microns. The SCT was significantly thinner than the ICT, NCT, and TCT (P = 0.0001). Differences among ICT, NCT, and TCT were not statistically significant. The mean CCT of the 1-day-old group was 611 +/- 58 microns, this being thicker than those of the other age groups (P = 0.0001). The differences between male and female babies and between right and left eyes were not statistically significant. This is the first study on peripheral corneal thickness at the limbus in the four meridians in live newborns.
为建立正常标准，作者使用超声测厚法研究了152名1至6日龄的健康白人足月新生儿（304只眼）的中央和周边（上方、下方、鼻侧和颞侧）角膜厚度。中央角膜厚度（CCT）的平均值为585±52微米（范围为446 - 706微米）。周边角膜厚度（PCT）的平均值明显厚于CCT（P = 0.0001），分别为：上方（SCT）696±55微米，下方（ICT）744±62微米，鼻侧（NCT）742±58微米，颞侧（TCT）748±55微米。SCT明显薄于ICT、NCT和TCT（P = 0.0001）。ICT、NCT和TCT之间的差异无统计学意义。1日龄组的平均CCT为611±58微米，比其他年龄组的厚（P = 0.0001）。男婴和女婴之间以及右眼和左眼之间的差异无统计学意义。这是第一项关于活体新生儿四条子午线角膜缘周边角膜厚度的研究。
