Study of the optic nerve head-fovea angle with retinciphotography in healthy patients
Study of the optic nerve head-fovea angle with retinciphotography in healthy patients
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DOI：
10.1016/s0181-5512(07)89664-1
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发表时间：
2007-06-01
影响因子：
1.2
通讯作者：
Pechereau, A.
中科院分区：
文献类型：
--
作者：
Lefevre, F.;Leroy, K.;Pechereau, A.
目的：在使用主观测量方法时，眼球扭转的测量仍然是复杂和精细的。客观措施现在可以在日常实践中使用。材料和方法：前瞻性研究150例患者，分为3个不同年龄组：儿童(15岁以下)、青壮年(15-50岁)和成人(50岁以上)。所有纳入的患者都进行了正常的眼球运动检查，并接近正视。眼底照片是使用标准化系统拍摄的。结果：视神经头中心凹角度服从正态分布(平均值6.3；标准差3.4)。通过不同的连续检查，该方法在单个患者身上是可重复性的。不同年龄段的患者之间该角度无差异。此外，在87%的患者中，中心凹在视神经头中心和下缘之间有一个投影，这表明这些解剖模型在临床评估扭转方面是可靠的。讨论：本研究证实了眼扭转客观测量的准确性，并验证了已发表的罕见研究提出的解剖模型。结论：系统眼科摄影时代为诊断开辟了新的视角，因为健康患者的范围已经确定，这是疾病分析之前所必需的。这种可靠而简单的解剖模型的验证应该使这种方法更容易在临床和日常实践中使用。
Purpose: The measurement of ocular torsion remains complicated and delicate when using subjective methods of measurement. Objective measures are now accessible in daily practice. This study determined the standards for ocular torsion in healthy patients with fundus photographs.Materials and methods: Prospective study on 150 patients divided into three different age groups: children (under 15 years); young adults (15-50 years); and adults (over 50 years). All patients included had a normal oculomotor examination and were close to emmetropia. The fundus photographs were taken using a standardized system. The results were analyzed with 598 a graphic computer program and took into consideration reproducible anatomical models; a statistical study determined the thresholds of statistical significance.Results: The optic nerve head-fovea angle followed a Gaussian distribution (mean, 6.3; standard deviation, 3.4). The measure was reproducible in a single patient through different successive examinations. There was no variation of this angle between the patients of different ages. Furthermore, in 87% of the patients, the fovea had a projection between the center and the lower edge of the optic nerve head, indicating that these anatomical models are reliable in a clinical evaluation of torsion.Discussion: This study confirms the accuracy of the objective measurements of ocular torsion and validates the anatomical models proposed by the rare studies already published.Conclusions: The era of systematic ophthalmic photography is opening new perspectives in diagnosis now that the range in healthy patients has been determined, necessary before the disease could be analyzed. This validation of reliable and simple anatomical models should make this method easy to use in clinical and daily practice.