foggy four eyes?

[soccer4m]

See the doc

Hi Garth,,,,,if your vision is bad enough for glasses at distance it could be wise to see if Lasik is possible for you with a doc that does the procedure, its usually free for a check and consultation. Our insurance, Kaiser, paid for half. All the people, around a dozen, that I know personally have had zero problems with the correction. Of course, as TC pointed out there is remote instances, but I havent heard of any. I got mine as I was tired of being pummeled on the North Shore, Oahu in mongo waves when I couldnt see closeout sets coming in and I would get annihilated, now I can see Bikinis with no problem at distances and big set waves......so, deal with glasses or get your eyes checked out by a specialist and see what can be done,,,,see ya, Mike

[TopCatGr58]

Hey Mike and Garth,

In my previous book, I used the term LVC, which can be done via LASIK, making the Flap, or PRK...the laser treatment done directly on the front surface of the cornea WITHOUT making a flap, and without all of the risk factors that come with Lasik. PRK takes a bit longer to heal from because the surface skin layer has to be removed, and then after the laser treatment, it has to grow back in across the cornea. PRK patients have to wear no power contact lenses for 5 days like bandaids while the skin layer grows back. They also have to take special anti-inflammation/antiscar medication drops for possibly a few months. They attain ~90% of their best potential vision in that first week after surgery, but can take a few months for the last 10% to clarify as the swelling and healing completes.

PRK is a lot less dangerous, and does not aggravate or cause the eyes to be/get dry anywhere like LASIK. Lasik is not recommended for folks in high injury prone jobs...ie. fireman, Policemen, military....but it's still done. The concern is that the flap is very fragile and if an impact occurs it could tear loose/off the thin ~150 micron thick flap...which will cause catastrophic damage/loss of vision/focus. The flap heals/scars back down onto the base cornea fairly slowly, it can be lifted up to a year or so after the surgery to perform a tuneup/enhancement procedure if needed. It can take several years for it to fully adhere/scar to the base cornea.

Some folks have fairly strong prescriptions..Myopia...-6.00 or more, and they may not have thick enough corneas to be able to safely undergo the LASIK process....but can still usually have PRK. Here's the math for those still interested.

Cornea thickness range from 450 to 600+ microns.
Lasik Flap range 150-130 microns.
Minimum inner cornea thickness AFTER laser can not go thinner than 250, otherwise it can stretch and bulge like a weak spot on a tire...not good.
It takes 15-20 microns for every full 1.00 unit of prescription...ie.
-6.00 could take 90 to 120 microns. 500 thick cornea - 150 flap = 350 inner thickness. -100 micron Laser and you're at the minimum 250 already!

Garth, a little fuzzy at 10 yds-30 feet sounds like you're not very nearsighted, and as stated you can see up close. IF you have the LVC to fix/correct your distance vision, you will most likely loose your up close vision without glasses....so it can be a trade off.

T.C.

[CaptonZap]

Hey TC, good info.


Since you seem to know a lot about eyes, I have a question.
Sometimes, when I am in a dark place, and when I blink, I notice a vertical crescent of light out of the corner of each eye. A thin sliver, but bright. Any idea what causes that?
Thanks, CZ

[CatatonicBug]

I don't wear glasses (yet), but I have struggled with foggy visors. I have a full-face helmet, and installed a "respro foggy mask". It seals my breath away from the eye area of the helmet and forces it downward and out of the helmet. It was really cheap and works great! Of course, if your face is really warm, it may still be enough to cause fogging. I just purchased a dual-layer face shield as well, to prevent fogging in the rain. I have not received it yet, but I'm hoping it will help even more.

[fredintoon]

So if LASIK is risk free how come they'll only do one eye at a time?
I'll stay with corrective lenses thanks.
I've tried anti-fog treatments from smearing the visor with a fresh-cut potato to using a $50 for a tiny jar hi-tech anti-fog compound.
None worked as well as it's protagonists claimed.
The potato smear worked no worse than the expensive stuff.
Admittedly it was less convenient.
I ride in the rain using a multi-stage process:-
Visor closed until it starts to fog then crack it open.
Visor cracked until the rain beads up on it too much to see through.
Visor half open, peer under visor rim through glasses until rain beads up on glasses too much to see through.
Pull glasses down nose, squint between bottom of visor and top of glasses.
Keep blinking, pull onto hard shoulder, keep going at 30mph until I get home.

[wa407mpp]

good cure

One thing that has always worked on face shields and glasses is to apply a thin film of dish soap to the inside of the lense and then polish it off with out washing with water, also if you are using a balaclava to keep your face warm and pull it up too high it will cause your breath rise up under your glasses and they will fog.

[jwhughes3]

10yards...10 beers

I see fine up close but things get aittle.fuzzy about 10 yards out

It happens to me too after about 10 beers even with glasses.

Thanks TC for such an excellent explanation of why we wear glasses.

John

[jwhughes3]

in a dark place

Hey TC, good info.


Since you seem to know a lot about eyes, I have a question.
Sometimes, when I am in a dark place, and when I blink, I notice a vertical crescent of light out of the corner of each eye. A thin sliver, but bright. Any idea what causes that?
Thanks, CZ

CZ,
I can't answer where your "magic light" comes from - likely just generated by your own optic nerve somehow - but when I am in a dark place, I find a little light jazz and glass of whiskey will set things right and I feel better.

I hope TC has a better answer!

John

[jwhughes3]

Oh back on topic...

I wear glasses under a face shield and find too that cracking the shield helps clear up the fogging as well as trying to direct my breath down when it is bad (like before things equalize). Just pretend you are trying to blow out a fire in your beard when you exhale....


John

[TopCatGr58]

Hey John,

I sent CZ a PM with info and advice..sounded like chronologically(age) induced flashes due to vitreous degeneration and such!

Fred..I never said LASIK was Risk free....I said it was FULL of Risks, but since the eye is not being cut OPEN...just the surface is being filleted, so there's less risk of INTERNAL infection...and so they DO perform it on both eyes at the same time. IT's CATARACT surgery that is NOT done on both eyes because you/we are breaking the integrity of the eye BALL having to cut it open to be able to get to the inner parts...the crystaline lens behind the pupil, and so there's a bit more risk for infection getting inside the eye from the introduction of instruments into it!

I've found slamming my flip up visor down quickly along with doing that finger rubber strip wiper action keeps the visor clear enough to be able to see thru it with heavy rain, so I don't have to leave it open...which would then get rain in my eyes.

T.C.

[petejw]

when i used to scuba dive,
we'd spit into the goggles,
rub it around with ur fingers
then rinse it out in water,
it would stop the goggles from fogging up,
never tried it on glasses tho.

[XS1100 Newbie]

I have Wiley-x prescription sunglasses, and love them, but they do fog easily. I removed the foam liner around them, and it helped a bit. They are expensive though. I have not found a cure for the fogging as yet, short of not wearing them when it is cold out.

[RJFort]

you can not wear a Full face helmet. With the half you wont have nay issues. Or when I do wear my full face I keep the visor cracked just enough to get circulation. and I took the little piece above the mouth guard out. Had a little removable guard that deflected the wind but kept breath in the helmet. Not sure if that makes any sense. can't explain it well enough i guess, cuz I confused myself, lol.

[jetmechmarty]

I have Wiley-x prescription sunglasses, and love them, but they do fog easily. I removed the foam liner around them, and it helped a bit. They are expensive though. I have not found a cure for the fogging as yet, short of not wearing them when it is cold out.

This is a pretty good solution.

[Cuda 69]

I don't use a full face just because of these reasons,Use 3/4 with shield, but I still have to lift the shield slightly.Geez TC, I understand to much of what your saying,Wife would be proud of me.(She used to work at Ma. eye and ear doing surgery in Boston.