價格:免費
更新日期:2016-06-01
檔案大小:25.8 MB
目前版本:1.0.1
版本需求:需要 iOS 6.0 或以上版本。與 iPad 相容。
支援語言:俄文, 土耳其文, 德語, 捷克文, 日語, 法文, 波蘭文, 瑞典文, 簡體中文, 繁體中文, 義大利文, 英語, 荷蘭文, 葡萄牙文, 西班牙文, 韓語
App for measuring the Visual Acuity and Contrast Sensitivity with dynamic Charts at multiple distances (Normal or Low Vision Patients)
Normal Vision
1.- ETDRS Charts for presenting at 0.40, 0.67, 0.80, 3 and 4 meters.
2.- 3 Different packages of letters for avoiding memorization.
3.- Contrast Variation from 0 to -2.3 log units in -0.1 log unit steps for measuring visual acuity 4.- at different conditions of contrast.
5.- Isolated Crowded Sloan letters for measuring poorer visual acuity values than the limited 6.- for the screen size in an ETDRS chart.
7.- Contrast Variation from 0 to -2.3 log units in -0.1 log unit steps for measuring contrast at a fixed value of visual acuity.
Low Vision
1.- ETDRS Chart for presenting at 1 meter. From 0.2 to 1.1 logMAR [20/32 to 20/253]
2.- Contrast Variation from 0 to -1.9 log units in -0.1 log unit steps for measuring visual acuity 3.- at different conditions of contrast.
4.- Isolated Crowded Sloan letters for measuring poorer visual acuity values than the limited for the screen size in an ETDRS chart. Up to 1.6 logMAR [20/800]
Special Technical Issues
1.- These issues makes the app the most proffesional in terms of personalization to maximize reliability.
2.- Tablet's pixels per inch. The dots per inch (dpi) from your device is automatically recovered from the device and displayed in the screen.
3.- Gamma correction. Optimize the contrast of the letters in your device by means of inserting your own calibration data.
支援平台:iPad