Visual Acuity Charts 3.1.1

Visual Acuity Charts 3.1.1

Zijian Huang – Freeware – iOS
out of 30 votes
Latest Version
3.1.1
Safe to install
image/svg+xml VERY GOOD User Rating

Designed with children aged 6 and above, parents of young children, and general practitioners in mind, this eye chart app provides accurate optotypes for measuring distance vision. It aims to assist in the early detection of myopia, encouraging proactive measures and timely consultation with medical professionals to prevent the progression from pseudomyopia to myopia or the worsening of nearsightedness.

Supported Eye Charts:

  1. Snellen (C, D, E, F, H, K, N, P, R, U V and Z)
  2. Tumbling E (with the option for a shorter middle arm)
  3. Landolt C
  4. ETDRS (C, D, H, K, N, O, R, S, V, and Z)
  5. European-wide (H, K, O, E, P, X, B, T, M and A)
  6. HOTV
  7. Numbers
  8. Shapes

Test Distances:

  • Predefined distances: 6, 5, 4, 3 and 2 meters; 20, 15, 12, 10 and 6 feet
  • Custom distance range: 0.5 - 30 meters or 1.6 - 98 feet

Scenarios:

  1. "Doctor" and "Patient"
  2. Self-diagnosis with a mirror using the mirror mode feature to stand at double the distance from the mirror with one eye covered and device screen facing the mirror
  3. Self-diagnosis with a Bluetooth keyboard from a few meters away by using the keyboard's direction keys to indicate readings

Notations:

  • Decimal (0.50)
  • Fraction (20/40)
  • LogMAR (0.30)
  • Fraction (5/10)
  • Fraction (6/12)
  • MAR (2)
  • VAS or VAR (85)

Test Modes:

  1. Manual
  2. Auto scoring: Utilize swiping gestures to indicate correct or wrong readings for automated scoring and progress tracking by enabling "Record Scores" in settings

The study "Visual Acuity Testing for Telehealth Using Mobile Applications" published in JAMA Ophthalmology noted that Visual Acuity Charts are ranked as the most accurate among ten tested apps on iPhones.

Initial screening for myopia often involves testing distant visual acuity with visual acuity charts as decreased visual acuity may suggest myopia development.

Disclaimer:

This app offers a digital alternative to traditional printed eye charts but is not a substitute for in-depth eye examinations conducted by healthcare professionals like doctors and optometrists. Conditions like strabismus, esotropia, exotropia, hyperopia, and astigmatism are not tested by this app despite being common early vision issues. Regular visits to optometrists are advised upon noticing early signs of visual acuity problems.

Overview

Visual Acuity Charts is a Freeware software in the category Home & Hobby developed by Zijian Huang.

The latest version of Visual Acuity Charts is 3.1.1, released on 07/07/2024. It was initially added to our database on 03/16/2024.

Visual Acuity Charts runs on the following operating systems: iOS.

Users of Visual Acuity Charts gave it a rating of 4 out of 5 stars.

Pros

  • Easy to use and navigate interface.
  • Includes a variety of visual acuity chart designs suitable for different needs.
  • Can be used for both clinical and personal assessments.
  • Allows users to customize patient experiences, adjusting chart types and sizes as needed.
  • High-quality graphics for clear readability of text on the charts.

Cons

  • Limited support for languages other than English.
  • May require a subscription for accessing advanced features or additional chart types.
  • Not all versions may be compatible with older devices or operating systems.
  • Some users might find it lacks comprehensive analytics or reporting tools.
  • Installation and setup might be confusing for non-technical users.

Screenshots (Click to view larger)

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