# safe tint % ?

**URL:** <https://forums.speedlife.net/t/safe-tint/120224>\
**Category:** SON240sx Automotive\
**Created:** [November 29, 2008, 4:49pm UTC](https://forums.speedlife.net/t/safe-tint/120224 "2008-11-29T16:49:16Z")\
**Posts on this page:** 1\
**Showing post:** 36

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**Author:** ![white2abbit](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/white2abbit/32/5602_2.png) [@white2abbit](https://forums.speedlife.net/u/white2abbit)\
**Post date:** [December 4, 2008, 1:48pm UTC](https://forums.speedlife.net/t/safe-tint/120224/36 "2008-12-04T13:48:33Z")

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> [@good not so average rock bands](https://forums.speedlife.net/t/good-not-so-average-rock-bands/19346/28):
>
> ^20/20 is perfect vision so I’m guessing you’ve got glasses?

nope. 20/10 vision is when an object that is 20 feet away appears as clear as an object 10 feet away for a person with 20/20 vision…

“A visual acuity of 20/20 is frequently described as meaning that a person can see detail from 20 feet away the same as a person with normal eyesight would see from 20 feet. If a person has a visual acuity of 20/40, he is said to see detail from 20 feet away the same as a person with normal eyesight would see it from 40 feet away. It is possible to have vision superior to 20/20: the maximum acuity of the human eye without visual aids (such as binoculars) is generally thought to be around 20/10 (6/3) however, recent test subjects have exceeded 20/8 vision. Recent developments in optometry have resulted in corrective lenses conferring upon the wearer a vision of up to 20/10. Some birds, such as hawks, are believed to have an acuity of around 20/2; in this respect, their vision is much better than human eyesight.”

> **[Visual acuity](https://en.wikipedia.org/wiki/Visual_acuity)**
>
> Visual acuity (VA) commonly refers to the clarity of vision, but technically rates an animal's ability to recognize small details with precision. Visual acuity depends on optical and neural factors. Optical factors of the eye influence the sharpness of an image on its retina. Neural factors include the health and functioning of the retina, of the neural pathways to the brain, and of the interpretative faculty of the brain.
> The most commonly referred-to visual acuity is distance acuity or far a...

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