Hollis Jarrod, Allen Peter M
Department of Optometry and Ophthalmic Dispensing, Anglia Ruskin University, East Road, Cambridge, CB1 1PT, UK.
Ophthalmic Physiol Opt. 2006 Nov;26(6):566-71. doi: 10.1111/j.1475-1313.2006.00401.x.
Two methods of assessing candidates for coloured overlays were compared with the aim of determining which method had the most practical utility. A total of 58 adults were assessed as potential candidates for coloured overlays, using two methods; a questionnaire, which identified self-reported previous symptoms, and a measure of perceptual distortions immediately prior to testing. Participants were classified as normal, Meares-Irlen sensitive, and borderline sensitive. Reading speed was measured with and without coloured overlays, using the Wilkins Rate of Reading Test and the change in speed was calculated. Participants classified as normal did not show any significant benefit from reading with an overlay. In contrast, a significant reading advantage was found for the borderline and Meares-Irlen participants. Current symptom rating was found to be a significant predictor of the change in reading speed, however the previous symptom rating was not found to be a reliable predictor. These data indicate that the assessment of perceptual distortions immediately prior to measuring colour preference and reading speed is the most meaningful method of assessing pattern glare and determining the utility of coloured overlays.
比较了两种评估彩色覆盖物候选者的方法，目的是确定哪种方法具有最大的实用价值。共有58名成年人被评估为彩色覆盖物的潜在候选者，采用了两种方法：一种问卷，用于识别自我报告的既往症状，以及在测试前立即进行的感知扭曲测量。参与者被分为正常、梅尔斯-厄伦敏感和边缘敏感三类。使用威尔金斯阅读速度测试，在有和没有彩色覆盖物的情况下测量阅读速度，并计算速度变化。被归类为正常的参与者在使用覆盖物阅读时没有显示出任何显著益处。相比之下，边缘和梅尔斯-厄伦参与者则发现了显著的阅读优势。发现当前症状评分是阅读速度变化的显著预测因素，然而既往症状评分并不是可靠的预测因素。这些数据表明，在测量颜色偏好和阅读速度之前立即进行感知扭曲评估是评估图案眩光和确定彩色覆盖物效用的最有意义的方法。
