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