It is a common misconception that 20/20 is perfect vision. In reality, having 20/20 visions means that you can see from 20 feet what a normal person can see from 20 feet. 20/15 vision means you can see from 20 feet what a normal person can see from 15 feet.
Perfect vision means that your eyes perform the following processes perfectly:
1. Refraction of light
2. Accommodation of the lens
3. Constriction/dilation of the pupil
4. Convergence of the eye
It means you have pretty close to perfect vision as 20/20 is considered perfect. Simply put, most people see at 25 feet what you see at 20.
Perfect vision
Not likely. While perfect vision or even near perfect vision are necessary for enlistment, enlistees cannot be legally blind.
Patients who expect to see perfectly after LASIK are usually not considered good candidates because they usually are dissatisfied
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.
Technically, it is NOT considered perfect vision. 20/20 is considered nominal vision and is a value that represents an accepted level of visual acuity for a human. It means that at 20 feet, you can see things the average person will see at that distance. Good vision would mean the the bottom number is smaller, you can see at 20 feet what most people can see at 15 or 10. 20/40 would mean that you have to be at 20 feet to see what a normal person sees at 40 feet. Most places define blindness as 20/200.
Everything in the world is perfect and everyone is perfect in some way as he is in sports
It means that a person needs to be within 20 feet to clearly see what someone with "normal" (20/20) perfect vision can clearly see at 25 feet. It's good but not perfect vision
There is no vision score of 40/40. Vision is scored on the distance a person can see in feet. A vision score of 20/20 would be considered perfect sight.
The best score for an eye vision test is 20/20, which states pretty much that you have perfect vision.
Utopia
Utopia