Prevention better than cure. 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. Visual Acuity Charts v2.0 build 42 [Paid] APK Free Download Latest version for Android. Download full APK of Visual Acuity Charts v2.0 build 42 [Paid].
Overview & Features of Visual Acuity Charts v2.0 build 42 [Paid]
Before you download Visual Acuity Charts v2.0 build 42 [Paid] APK, You can read a brief overview and features list below.
Overview: Prevention better than cure. 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.
Prevention better than cure. 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.
Rather than taking eye exams annually, you can check your visual acuity frequently with this app. For example, if you have young children to take care of, you may test their visual acuity monthly, fortnightly or weekly, so you can take preventive measures and seek help from medical professional early to prevent pseudomyopia from becoming myopia, or prevent nearsightedness from getting worse.
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
ETDRS chart with LogMAR notation is actually LogMAR chart.
Predefined Test Distances:
* 6, 5, 4, 3, and 2 meters
* 20, 15, 12, 10, 6 feet
And an arm’s reach distance may be defined in Settings.
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.
Voice Hint is available for a “doctor” wearing a headphone when observing the responses from the “patient”.
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.
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). For other noatations, 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.
Disclaimer:
While this app may replace Snellen Chart, E-Chart, C-Chart, ETDRS Charts and HOTV Chart in print, it cannot replace doctors and optometrists who carry out comprehensive tests for your eyes. Please visit optometrists regularly and seek help from medical professional at early signs of visual acuity problems.
What’s New:
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 may indicate myopia.
This app has no advertisements
Visual Acuity Charts v2.0 build 42 [Paid] APK – Technical Details
Before you start full Visual Acuity Charts v2.0 build 42 [Paid] APK Download, you can read below technical APK details:
- Full Application Name: Visual Acuity Charts v2.0 build 42 [Paid]
- Supported Android Versions: 4.2+
- APK File Name: Visual_Acuity_Charts-2.0_b42.apk
- APK File Size: 18 MB
- Official Play Store Link: https://play.google.com/store/apps/details?id=com.fonlow.VA&hl=en
Visual Acuity Charts v2.0 build 42 [Paid] APK Free Download
So Excited to download? Well, click on below button to start Download Visual Acuity Charts v2.0 build 42 [Paid] APK. This is a single direct link of Visual Acuity Charts v2.0 build 42 [Paid].