Visual Acuity Test
A ring with a gap will appear. Identify which direction the gap faces using the arrow buttons. The ring gets smaller each correct answer.
FAQ
No. This is an informal visual acuity test for entertainment and self-assessment only. It cannot replace a professional eye examination. If you have vision concerns, see an optometrist.
This test uses the Landolt C method, where you identify the direction of a gap in a C-shaped ring. It is one of the standard clinical methods for measuring visual acuity.
Screen resolution, viewing distance, room lighting, screen brightness, and whether you wear corrective lenses all affect results. Standardize conditions for the most meaningful results.
About this test
This visual acuity test uses the Landolt C method to estimate your visual sharpness. Note that online tests cannot replace professional eye examinations.
How It Works
A C-shaped ring (Landolt C) appears at decreasing sizes. Identify which direction the gap faces. The smallest size you can correctly identify indicates your approximate visual acuity.
Understanding Visual Acuity
Visual acuity is measured as a fraction (like 20/20). The top number is your testing distance, the bottom is the distance at which a person with normal vision could read the same line. 20/20 is considered normal.
Limitations
- Screen tests cannot replicate standardized testing conditions
- Results depend on screen size, resolution, and viewing distance
- This test is for fun and awareness only — consult a professional for accurate measurement