How to interpret the measurement results

Under normal circumstances, applies to individuals who are 5 years of age and older, to assess your visual acuity using measurement results, you can refer to the chart displayed on the right side.

For instance, if you can read the letters on every line from 20/20 and upwards, your prescription is 0D, indicating good vision. However, if you can only read the letters from 20/40 and upwards, your prescription may be -1.00D, suggesting a need for correction. Please note that this may not represent precise results. If you require a prescription for eyeglasses, please visit a professional optometrist.

The inclusion of red and green color bars facilitates the assessment of red-green color blindness.

Additionally, in the case of children under 5 years old, as their eyes are still in the process of development, 3-4-year-old children may typically only be able to read the 20/40 or 20/50 lines.