Everyone desires perfect vision. So, who wouldn’t love to see the vibrancy of nature, people and the things around them? The ability to see everything around you crisp and sharp from a far distance without aid is a testament to good visual acuity. Visual acuity is the term used to describe the sharpness of vision. Visual acuity of 20/20 refers to normal vision in the United States. The Indian equivalent is 6/6, measured in meters, compared to the US system, measured in feet. Hence, both of them denote the same measure of visual acuity in different countries. Also, countries in Europe and elsewhere use the 6/6 measure. Some people see better than 20/20 with a visual acuity of 20/15 and 20/10. It implies that you can see far objects and even small texts from a distance of 20 feet compared to a person who sees them from 15 or 10 feet. People who pass standard visual acuity tests may still have higher-order aberrations such as spherical aberration, trefoil and coma. They can be corrected through laser surgeries or rigid lenses such as Gas Permeable (GP) lenses