TRIAL OF BIFOCALS IN MYOPIC CHILDREN WITH ESOPHORIA

双焦点眼镜在患有视视障碍的近视儿童中的试验

• 批准号: 6047648
• 负责人: GEORGE W FULK
• 金额: $ 11.69万
• 依托单位: NORTHEASTERN STATE UNIVERSITY
• 依托单位国家: 美国
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-06-01 至 1999-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/6047648
• 关键词: TRIAL; BIFOCALS; MYOPIC; CHILDREN; ESOPHORIA

DESCRIPTION: (Applicant's Abstract) This clinical trial will test the hypothesis that correcting a specific group of myopic children with bifocals, instead of with single-vision spectacles, will reduce the rate of myopic progression. The specific group of myopic children to be included in the trial are those who show near-point esophoria, a tendency to over-converge while reading. Such children constitute about 30 percent of all myopic children. Support for the effectiveness of bifocals in esophoric children comes from three sources: a retrospective study, a secondary analysis of a clinical trial designed for another purpose, and pilot data collected by the applicants. These studies suggest that bifocals reduce the rate of myopic progression by 50 percent in esophoria children. The proposed study will be the first clinical trial of bifocals in myopic children with esophoria. Eighty myopic children with near-point esophoria will be divided randomly into two treatment groups: correction with single-vision lenses or with bifocal lenses containing a +1.50 D add. For 30 months, myopia will be measured every 6 months by means of automated, cycloplegic refraction. The long-term objective of the study is to find a method of reducing the final amount of myopia in a significant portion of all myopic persons. About 25 percent of all Americans are myopic. The correction of myopia and the treatment of myopia-associated diseases accounts for a significant proportion of health care costs. Substantial savings could be achieved if this study is successful. Many children, who are in phase of rapid myopia progression, would have to change prescriptions less often. Many adults would have better vision without glasses, thinner lenses, and a lower risk of retinal detachment.

描述：（申请人摘要）该临床试验将测试 假设矫正特定群体的近视儿童 双焦点眼镜，而不是单光眼镜，会降低比率 近视进展。 近视儿童的具体群体 试验中包括那些表现出近点内视的人，这是一种倾向 阅读时过度收敛。 此类儿童约占30 占所有近视儿童的百分比。 支持双焦点眼镜对儿童的有效性 来自三个来源：回顾性研究、二次分析 为其他目的设计的临床试验，以及收集的试点数据 申请人。 这些研究表明双焦点眼镜可降低 近视眼儿童的近视进展达 50%。 拟议的研究将是双焦点眼镜治疗近视的第一个临床试验 患有白内障的儿童。 八十个近视儿童 将白内障随机分为两个治疗组：矫正 使用单光镜片或包含 +1.50 D 的双光镜片 添加。 30 个月内，每 6 个月测量一次近视 自动散瞳验光。 该研究的长期目标是找到一种方法来减少 所有近视人群中很大一部分人的最终近视程度。 大约 25% 的美国人患有近视。 近视矫正 近视相关疾病的治疗占 占医疗保健费用的很大一部分。 大量节省可以 如果这项研究成功的话，就可以实现。 许多处于阶段的孩子 近视进展迅速，需要减少处方变更 经常。 许多成年人不戴眼镜视力会更好，更瘦 镜片，视网膜脱离的风险较低。