Eye Test Calculator
This test evaluates your ability to distinguish letters of varying sizes, offering a quick screening based on Snellen chart standards.
| Age Group | Recommended Frequency |
|---|---|
| Birth to 24 months | Once between 6 to 9 months |
| 2 to 5 years | Once between 2 to 5 years |
| 6 to 19 years | Once a year |
| 20 to 39 years | Once every 2 to 3 years |
| 40 to 64 years | Once every 2 years |
| Over 65 years | Once a year |
The Snellen chart displays 11 rows of capital letters contained in separate lines that get progressively smaller. Each line corresponds to a visual acuity score, such as 20/20, 20/30, or 20/40.
Example: If you have 20/40 vision, it means you must stand 20 feet away to read what a person with normal vision can read at 40 feet.
| User Selection | Displayed Visual Acuity | Interpretation |
|---|---|---|
| Line 8 (20/20) | Normal Vision | Normal clarity |
| Line 7 (20/25) | Mild visual blur | May need minor correction |
| Line 6 (20/30 to 20/40) | Mild myopia/hyperopia | Recommend check-up |
| Line 4–5 (20/50 to 20/70) | Moderate vision reduction | See an eye specialist soon |
| Line 1–3 (20/100 to 20/200) | Severe visual impairment | Urgent ophthalmology referral |
The functioning of this tool and the content on this page have been verified by the iCliniq medical review team.
Would you like to test your eyes and know the strength of your vision? Our Eye Test Calculator is a simple and convenient tool that helps you screen your vision strength from the comfort of your home. It offers a faster, simpler way to determine whether your eyesight may require further evaluation by an eye specialist. The tool also helps you track changes in your vision over time, making it easier to notice when professional care may be needed.
Note: This test does not replace a comprehensive eye examination and can only be used for screening purposes, which can provide you with an approximate result of your visual acuity.
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