Almubrad Turki
Department of Optometry, College of Applied Medical Sciences, Riyadh, Saudi Arabia.
Clin Exp Optom. 2006 May;89(3):155-9. doi: 10.1111/j.1444-0938.2006.00027.x.
This paper aimed to study the norms for clinical stereo-acuity in Saudi children aged between six and 12 years and to determine the 95 per cent confidence limits for stereo-acuity thresholds in this group of subjects.
A total of 1,383 normal subjects (883 male and 500 female) aged between six and 12 years participated in this study. External examination, cover test, visual history and visual acuity were assessed for each subject prior to Titmus stereo-acuity measurement.
The range of stereo-acuities attained by subjects for each age was 40 to 100 seconds of arc. The average stereo-acuity threshold showed an inverse (improved) relationship with the age of the subjects.
This study indicates that not all children achieve the normal adult stereo-acuity of 40 seconds of arc by the age of 12 years. However, approximately 99 per cent of all children up to and above the age of six years achieve stereo-acuity thresholds of 80 seconds of arc or better. These results should serve as a guide when assessing the binocular vision status of school-aged children in Saudi Arabia.
本文旨在研究沙特6至12岁儿童的临床立体视锐度规范，并确定该组受试者立体视锐度阈值的95%置信区间。
共有1383名6至12岁的正常受试者（883名男性和500名女性）参与了本研究。在进行Titmus立体视锐度测量之前，对每个受试者进行了外部检查、遮盖试验、视觉病史和视力评估。
每个年龄段受试者达到的立体视锐度范围为40至100角秒。平均立体视锐度阈值与受试者年龄呈反比（改善）关系。
本研究表明，并非所有儿童在12岁时都能达到40角秒的正常成人立体视锐度。然而，6岁及以上的所有儿童中，约99%的儿童立体视锐度阈值达到80角秒或更好。这些结果应作为评估沙特阿拉伯学龄儿童双眼视觉状态的指南。
