Letters eye test. A snellen chart is an eye chart that can be used to measure visual acuitysnellen charts are named after the dutch ophthalmologist herman snellen who developed the chart in 1862. If youre at all worried about the expense of having your childs eyes tested dont be. Take the snellen eye test online to determine your vision strength ie.
Unfortunately the offices of most opticianseye doctors in the us are not twenty feet long. The standard placement of the chart on a wall in the us is twenty feet away from a persons vision. Test your eyesight in this eye test in front of the computer.
The classic example of an eye chart is the snellen eye chart developed by dutch eye doctor hermann snellen in the 1860s. With this online eye test you can do an eye test from the comfort of your couch or office chair. Eye wonder how youll do.
If you currently wear prescription glasses youll need to perform the test with and without glasses to have an indication of whether your current prescription is accurate. Many ophthalmologists and vision scientists now use an improved chart known as the logmar chart. What 2020 vision in an eye test means.