Where is the Odd Number Hiding? Check Your Visual Acuity By Finding it in 9 Seconds

This optical illusion puzzle challenges observation skills by hiding an odd number among similar digits. Backed by visual ...

Test your visual acuity in 22 seconds! Can you spot the hidden panda in this tricky illusion drawing?

Optical illusions with hidden images are amazing for testing your visual powers. These illusion images challenge your brain's ...
MobiHealthNews

Visibly receives FDA clearance for online visual acuity test

Online eyewear and vision care company Visibly announced it had received FDA 510(k) clearance for its at-home vision test. The Visibly Digital Acuity Product uses a touchscreen mobile device, like a ...
Healio

FDA clears at-home visual acuity test

The FDA announced that it cleared the Visibly Digital Acuity Product, a web-based, self-guided software application for testing visual acuity at home. The technology, which the FDA cleared Aug. 12, is ...
Healio

Objective Acuity’s vision test shows promising study results

Please provide your email address to receive an email when new articles are posted on . A trial conducted at the Southern College of Optometry in Memphis showed a strong correlation between threshold ...
Monthly Prescribing Reference

FDA Clears At-Home Visual Acuity Testing System

Credit: Shutterstock. Individuals can complete the test in approximately 6 minutes, at which point the test results will be made available to an eye care professional. The Food and Drug Administration ...
Nature

Response to: ‘Comment on The Eye Phone Study: reliability and accuracy of assessing Snellen visual acuity using smartphone technology’

Our formula for calculation of optotype size is also based on the arcminutes subtended by each letter, where we have calculated the ideal optotype size for a standard letter and combined this with ...