Eye charts are designed to be read at a distance of 20 feet (6.09 metres). Those who can read the 20 foot 'line' are said to have 20/20 vision. If they can read the 10 foot line, then they are 20/10, and so on.
Perfect vision
The author of the book "Vision 2020" is Abdul Kalam, who was a scientist and the former President of India. The book outlines his vision and ideas for India's development and progress by the year 2020.
No
2020 Vision - 2001 was released on: USA: 20 May 2001 (Las Vegas, Nevada)
Dr.A.P.J.Abdul Kalam
yes it will be
Yes
Perfect vision is not required to enter the 2020 olympics. As song as you are still able to be competitive, the olympics don't care about your vision. If your vision is poor enough to limit your ability to compete with people with better vision, there's always the paralympics.
Former Indian President Shri A. P. J. Abdul Kalam is the writer of India 2020: A Vision for the New Millennium.
Where did the term derby originate?
I have tried to edit your question to make sense of it, but I don't know what vision 2020 means. Is it something in India?
The symbol for Blackrock Municipal 2020 Term Trust in the NYSE is: BKK.