اصدار جديد من تطبيق : Visual Acuity Charts - Detect Myopia v2.2 (Paid) Apk لـ Android - تنزيل. تم نشر هذا التطبيق على سوق Google Play وجعلها متاحة في كل مكان، حمل التطبيق apk مجانا .
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اصدار جديد من تطبيق : Visual Acuity Charts - Detect Myopia v2.2 (Paid) Apk لـ Android - تنزيل :
Prevention is better than cure while myopia is incurable. Designed for children older than 6 parents with young children and general practitioners this app displays optically precise optotypes of eye charts for you to detect nearsightedness or myopia accurately and early. Supported Eye Charts: 1. Snellen Chart with C D E F H K N P R U V and Z as defined in BS 4274-1:2003 2. Tumbling E Chart 3. Landolt C Chart 4. ETDRS Chart with C D H K N O R S V and Z 5. HOTV Chart 6. ETDRS European-wide Chart with H K O E P X B T M and A 7. LEA Symbols for preschool-age children 8. Numbers Predefined Test Distances: * 6 5 4 3 and 2 meters * 20 15 12 10 6 feet At exactly 6 meters away from the patient the optotypes on the 6/6 line (Decimal 1.0 or LogMar 0.0) shall subtend 5 minutes of arc which means that the chart should be sized such that these optotypes are 8.73mm tall and the topmost (Snellen Fraction 6/60 Decimal 0.1 or LogMar 1.0) optotypes should be 87.3 mm tall. At exactly 20 feet away from the patient the topmost optotypes should be 88.7 mm tall because 20 feet equals 6.096 meters. Scenarios: 1. "Doctor" and "Patient". 2. Self-diagnosis with a mirror. 3. Self-diagnosis within arm's reach Notations： 1. Decimal (0.50) 2. Fraction (20/40) 3. LogMAR (0.30) 4. Fraction (5/10) 5. Fraction (6/12) 6. MAR (2) 7. VAS or VAR (85) All charts in any VA notation follow the LogMAR design recommended by the International Council of Ophthalmology (ICO) to address design flaws in original Snellen chart. Test Modes: 1. Autoplay 2. Manual In Autoplay the app calculates the score. For LogMAR notation the score is (LogMAR value of the best line read) + 0.02 x (number of optotypes missed). And the maximum missed is 3. For VAS notation the score is an inversion of the logMAR scale based on VAS=100-50xlogMAR. For other notations the score is the notation value of the best line read and optionally minus number of optotypes missed and the maximum missed is 2. By default setting "Play Interval Until Next Optotype" is none. Available intervals in second: 2 4 6 8 and 10. If the "patient" could not recognize the optotype within the interval this counts a miss. Through enabling Record Scores in Settings you can keep track of the progression of your visual acuity. Visual acuity scores of multiple testees could be recorded. Visual Acuity Score (VAS) is an inversion of the logMAR scale based on VAS=100-50xlogMAR. It is more intuitive since higher values indicate better visual acuity. In the scores review score 100 in blue indicates the reference standard scores above 100 in green indicates no myopia while scores below 100 in red may indicate myopia..download apk android for windows .
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