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首页> 外文期刊>Journal of pediatric ophthalmology and strabismus >Corneal topography and corneal thickness in children.
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Corneal topography and corneal thickness in children.

机译：儿童角膜地形图和角膜厚度。

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摘要

To evaluate the corneal topography, thickness, and elevation (anterior and posterior corneal surface) in children.One hundred eyes of 100 patients with a mean ± standard deviation age of 10.6 ± 2.7 years (range: 5 to 15 years) were imaged. The corneal elevation maps were classified into regular ridge, irregular ridge, incomplete ridge, island, and unclassified patterns.Mean simulated keratometry (Sim K) astigmatism was -0.69 ± 0.35 diopters (D) with mean maximum and minimum keratometry (K) of 44.26 ± 1.55 and 43.56 ± 1.57 D, respectively. Mean astigmatism and refractive power in the 3- and 5-mm zones was 0.64 ± 0.36, 43.85 ± 1.53 and 0.78 ± 0.5, 43.41 ± 1.48, respectively. The thinnest site on the cornea had an average thickness of 540 ± 34.03 μm. This site was most commonly located in the inferotemporal quadrant in 61% of eyes, followed by the superotemporal quadrant in 31%. Among the nine regions of the cornea evaluated, the central cornea had the lowest average thickness of 540 ± 34.03 μm and the superonasal cornea had the greatest average thickness of 628 ± 38.94 μm. The most common anterior corneal elevation pattern was the incomplete ridge (52%), followed by the island pattern. The incomplete ridge was most commonly observed on the posterior corneal elevation map (35%).These results provide normal standards for elevation and curvature topography and corneal thickness in children. These data may prove useful as a reference for future comparative studies of different corneal diseases in children. [J Pediatr Ophthalmol Strabismus. 2013;50(5):304-310.].
机译：为了评估儿童的角膜地形图，厚度和高度（角膜前后表面），对100例100眼中的100眼进行了成像，平均±标准差年龄为10.6±2.7岁（范围：5至15岁）。角膜高程图分为规则脊，不规则脊，不完全脊，岛和未分类模式。平均模拟角膜曲率（Sim K）散光为-0.69±0.35屈光度（D），平均最大和最小角膜曲率（K）为44.26。分别为±1.55和43.56±1.57D。 3和5毫米区域的平均散光和屈光力分别为0.64±0.36、43.85±1.53和0.78±0.5、43.41±1.48。角膜上最薄的部位的平均厚度为540±34.03μm。该部位最常见于61％的眼颞下象限，其次为31％的颞上象限。在所评估的九个角膜区域中，中央角膜的最低平均厚度为540±34.03μm，而鼻上角膜的最大平均厚度为628±38.94μm。最常见的前角膜抬高模式是不完整的脊（52％），其次是岛状模式。在角膜后高度图上最常见的脊不全（35％），这些结果为儿童的仰角和曲率形貌以及角膜厚度提供了正常标准。这些数据可能被证明可作为将来对儿童不同角膜疾病进行比较研究的参考。 [J Pediatr眼斜视。 2013; 50（5）：304-310。]。

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