Super Contact-Lenses

[sarongsong]

"...Developed by Nike, the new high-tech contact lenses are designed to give both amateur and professional athletes an enhanced view of their playing field. The tinted [amber], soft contacts, called MaxSight, filter out 95 percent of UV light, and highlight the objects an athlete most needs to see...available to the public in August...will cost about the same as a pair of normal contact lenses and need to be replaced about once a month. They are available with or without vision correction..."---Local6.com (http://wkmg.healthology.com/focus_article.asp?b=wkmg_ibsys&f=eyecare&c=eyecare _uvlens&spg=XML)
Put me in, coach...

[Jorge]

so they do what exactly?

[Gullible Jones]

If Nike sells it, I'm not buying it.

[Jpax2003]

Removing UV increases clarity for film, but I'm not sure how much it will help for eyes that may not see it anyways. Maybe it's like BluBlockers. The amber might remove some blue wavelengths, but UV filters often have almost no tint. The filtering of blue would enhance clarity but the filtering of UV may have no short term benefit but might help prevent blindness later in life.

[Sammy]

Did you buy the franchise, Sarongsong?



(edited to fix typo)

[Gullible Jones]

Why would filtering blue enhance clarity?

[Jpax2003]

Why would filtering blue enhance clarity?

There is a website (http://www.badastronomy.com/bad/misc/blue_sky.html) attached to this bulletin board. :D

[01101001]

Why would filtering blue enhance clarity?
The lens of the eye has some chromatic aberration. Not all colors are focused sharply simultaneously. If red is in sharp focus, blue isn't.

Chromatic Aberration (http://www.yorku.ca/eye/chroaber.htm)

[Van Rijn]

*Sigh* And here I was hoping for real super-contacts: That is, adaptive optics, automatically adjusting focus and an available computer display overlay. I guess I'll just have to wait a few more years. :(

[sarongsong]

Did you buy the franchise, Sarongsong?No, but I did buy UV-blocking Polaroid clip-ons (US$15) for my clear-lensed prescription glasses, to replace the cheap clip-ons (US$6) that had gotten too scratched to be useful; a remarkable improvement. Glare was significantly reduced and clarity increased. One curious side-effect; for whatever reason, at certain angles I can see patterns on glass windows (mostly automotive) left from resting on their cooling racks. Both sets of clip-ons are dark brown in color. The Wal-Mart I got them at actually had a demo display that proved to accurately portray the benefits observed post-purchase. Oh, have to raise them when viewing an ATM screen, too.

[01101001]

The lens of the eye has some chromatic aberration. Not all colors are focused sharply simultaneously. If red is in sharp focus, blue isn't.

Chromatic Aberration (http://www.yorku.ca/eye/chroaber.htm)
I once used this in some 2D artworks to give 3D depth cues. If my presbyopic eyes aren't lying to me, the muscles that control the eye lens have to pull harder when focusing red than focusing blue at the same distance. The brain might interpret this harder pull as evidence of a surface that is closer. In these images, to me, the red portions seem 1 or 2 cm closer than the blue.

http://www.01101001.com/graphics/pca203.gif
http://www.01101001.com/graphics/pzy046.gif

Anyone else see the red as being closer? Or is it time for my eye exam?

[snowcelt]

Get an eye exam. The blue is exactly the same distance away. :D But, with seriousness, I do see the blue to be closer. I find that sometimes you are better off being deliberately of focus, blind. Let me explain.

All vision is but light and how the brain interprets. Fool the brain by deliberately going slightly out of focus (how else do you see the three- dee figures in those mall posters?)

I have know idea how a perception change would give new perception unless perception is somewhat subjective.

[Lianachan]

This is tangental at best, but back in my competition shooting days I used to often wear yellow/amber tinted glasses as they definately improved contrast. The lenses were in no way correctional, my eyesight was and is 20-20, they were just tinted.

[Laguna]

This is tangental at best, but back in my competition shooting days I used to often wear yellow/amber tinted glasses as they definately improved contrast. The lenses were in no way correctional, my eyesight was and is 20-20, they were just tinted.
I noticed the same with yellow glasses.
They sell them as fog-glasses. To improve your eyesight on misty days.

[Jorge]

Get an eye exam. The blue is exactly the same distance away. :D But, with seriousness, I do see the blue to be closer. I find that sometimes you are better off being deliberately of focus, blind. Let me explain.

All vision is but light and how the brain interprets. Fool the brain by deliberately going slightly out of focus (how else do you see the three- dee figures in those mall posters?)

I have know idea how a perception change would give new perception unless perception is somewhat subjective.

Same here, blue seems closer without glasses (only need to to see far way)
but when i put em on, it still blue lol...

[boppa]

strange, to me the red seems to be `closer' ie slightly raised above the blue
interesting as i am partially red/green colourblind

i wonder if the binary one also has this(it would be interesting to see if the people who see the blue as higher dont have it)

just something i was wondering about as a possible cause?

[Laguna]

has nothing to do with your red/green weakness.
For me red is also slightly in front.

[Swift]

If Nike sells it, I'm not buying it.
Doesn't the little swosh symbol in your field of vision get annoying after a while. :wink: