Eye Chart Pro vs 双眼视功能检查

**A Top Downloaded Medical App - Over 500,000 Installs** Eye Chart Pro is a clinically-reviewed, randomizable visual acuity exam. It’s remote-controlled, pleasant for patients and providers, and FREE. Similar chart projector functionality usually costs over $1000. Check out the last screenshot to see more information on the clinical reviews in peer-reviewed publications and their conclusions. Useful for: - Triaging - House visits - Patients who have memorized the office chart Features: - Randomizable Snellen Chart - Randomizable Tumbling E Chart - Randomize the whole chart or one line at a time - Smooth interface with animations - Basic remote - Metric / Feet functionality Description: Eye Chart Pro is a generator for randomized Snellen and Tumbling E charts to offer a rough but useful screen of visual acuity. Simply press a button to randomize the entire eye chart, or touch an individual line of the chart to randomize that line. Tap another button to toggle between Snellen and Tumbling E charts. Eye care professionals around the world use Snellen Eye Charts to measure visual acuity. However, patients often memorize the classic Snellen chart, leading to less accurate vision measurements. Enter Eye Chart Pro! Though this unique, notebook sized randomizable eye chart should not be used as a primary visual acuity measuring tool, it can provide a handy rough vision screen when a chart is not available, or it can be used to complement static, wall-based Snellen charts. Eye Chart Pro was made with the best of intentions, and we hope to continue improving it. Your feedback is appreciated! Here is a summary of clinical evaluations we have found: ETDRS Chart on Eye Chart Pro on iPad: “Validation of the visual acuity iPad app Eye Chart Pro compared to the standard Early Treatment Diabetic Retinopathy Study chart in a low-vision population” Journal of Telemedicine and Telecare. Conclusion (summary quote): “The ETDRS chart function on the Eye Chart Pro application can reliably measure VA across a range, from normally sighted patients to those with low vision.” Sloan Chart on Eye Chart Pro on iPad: “The validity of visual acuity assessment using mobile technology devices in the primary care setting.” Australian Family Physician. Conclusion (summary quote): “The high level of agreement of visual acuity results between the Snellen wall chart and both mobile technology devices suggests that clinicians can use this technology with confidence in the primary care setting.” Tumbling E Chart on Eye Chart Pro on iPad: “A Pilot Trial of the Ipad Tablet Computer as a Portable Device for Visual Acuity Testing” Journal of Telemedicine and Telecare. Conclusion (summary quote): “Bland-Altman analysis revealed a mean difference (bias) of 0.02 logMAR units between the VA results from the iPad chart and the light-box chart, with 95% limits of agreement of -0.14 to 0.19.” We are not responsible for the above studies, so please check out the papers above if you have further questions.

专为医疗机构及视光中心提供的视功能检查系统。 检查项目包括： 1、对比敏感度检查； 2、Worth 4点检查； 3、主导眼检查； 4、双眼偏差检查（含简易偏差检查和空间扭曲地形图检查）； 5、同时视功能检查； 6、融合视功能检查（分为：线条融合和随机点融合检查）； 7、立体视功能检查（分为：线条立体视、静态随机点立体视和动态随机点立体视检查）等。 功能特点： 1、视觉对比敏感度检查：支持单眼（左眼、右眼）和双眼检查，支持模拟白昼和夜晚环境，支持高、中、低及全程空间频率，及正弦波、方波和Gabor光栅条纹。 2、随机点融合功能检查：支持固定视差和变视差的检查。 3、检查结果云端存储，方便随时随地查阅。 4、每1份检查结果对应唯一的1个检查号，可轻松导入到多宝视管理系统患者的电子病历中。 5、支持 Air Print 无线打印，轻松出具检查报告。 视功能检查的意义： 1、弱视治疗：双眼视功能检查对诊治儿童弱视具有指导意义，在弱视治疗中结合双眼视功能检查结果进行个性化训练，可取得较好的临床效果。 2、验光配镜：双眼视功能检查能更好的解决在常规验光中不能解决的一些问题，更好的开具处方帮助消费者能够拥有更好的视觉。 3、白内障手术：术前对患者视功能的检查对预测术后视力等情况非常重要，它有助于视功能的评估，提高预测术后视力的准确性。 4、屈光手术：双眼视功能检查，可从双眼视觉的变化评价屈光手术除在提高患者裸眼视力，减小患者双眼间的屈光差异之外，在增加双眼物像的融合，改善立体视功能方面的临床应用价值。 5、视疲劳：做双眼视功能检查与诊断，针对双眼视功能异常进行对症的视觉训练与治疗，可使各项双眼视异常经训练达标，从而起到缓解视疲劳、控制近视发展之目的。 “多宝视”视功能检查系统正常值范围： 1、对比敏感度检查：在默认的空间频率下，正常的对比敏感度曲线应在阴影范围内，呈倒U字形。 2、四孔灯检查+偏差检查：四孔灯的检查，以戴红蓝眼镜看到4个圆为正常。偏差检查，水平偏差和垂直偏差均要小于0.1为正常。 3、融合功能检查：通常在融合功能中，分开范围在-3~-21之间，辐辏范围在+5~+43之间。平均范围，分开为-8.2±1.7，辐辏为+20.9±2.7。正常范围，分开范围大致在-6.5~-13.0之间，辐辏范围大致在+15~+30之间，如果辐辏与分开值的比例在1.8:1~3:1之间，则分开与辐辏值超过上述范围也是正常的，且融合功能更强。 4、立体视功能检查：正常应在100秒以下，在60~10秒之间，则立体视功能为较好。