New Connecting Kids to Coverage Outreach Video. Learn about Las Vegas, Nevada's Foundation for Positively Kids outreach efforts using their network of community-based, school-based, and specialty health care clinics.
Young adults with 20/20 vision can often focus at 4 to 6 inches. At 6 inches, they can see detail at 600 pixels per inch or 300 line pairs per inch. As you age, your lenses become less resilient and the focus distance increases. At about 50 years, the average minimum focus distance is about a foot corresponding to 150 line pairs per inch or 300 pixels per inch. These numbers reflect good light and high contrast scenes. Generally, under more typical conditions, people don't see this well. --.
Monitor distance from the eye. The best distance from which to read a computer screen is generally greater than reading distances for papers and books. Typical distances for reading from a paper or book is from 15 to 25. Computer screens should be further away, sometimes 30 or more. Maximum viewing distance: First of all, there is no maximum viewing distance. As long as you can comfortably discern the information on the screen it's not too far away.