Do PureVision Toric Contacts Have Inversion Marks?

Hottchick · #1 (**permalink**) 02-07-2008, 12:01 PM

I read how Pure Vision toric contact lenses have lot numbers printed on them that can be used to tell if the contact lens is "inverted" or "inside out." How do they work? How can you use these printed numbers to tell if the contacts are inside out?

mamcita · #2 (**permalink**) 02-29-2008, 04:11 PM

Quote:

Originally Posted by Hottchick

I read how Pure Vision toric contact lenses have lot numbers printed on them that can be used to tell if the contact lens is "inverted" or "inside out." How do they work? How can you use these printed numbers to tell if the contacts are inside out?

I don't know if they are inversion marks but the lenses might have a letter followed by the number 7, as in "h7" or "k7." Just look for that number and make sure it's not backwards. If it is, the contact lens is inside out.

Good luck!

Hottchick · #3 (**permalink**) 09-16-2009, 11:35 AM

Quote:

Originally Posted by mamcita

I don't know if they are inversion marks but the lenses might have a letter followed by the number 7, as in "h7" or "k7." Just look for that number and make sure it's not backwards. If it is, the contact lens is inside out.

Good luck!

Thank you mamcita.

Deadman · #4 (**permalink**) 04-12-2010, 08:32 AM

Quote:

Originally Posted by mamcita

I don't know if they are inversion marks but the lenses might have a letter followed by the number 7, as in "h7" or "k7." Just look for that number and make sure it's not backwards. If it is, the contact lens is inside out.

Good luck!

How do you know which is which? Should you be able to read the text on the outside or inside curvature?

Bondjamesbond · #5 (**permalink**) 04-12-2010, 09:36 AM

Quote:

Originally Posted by Deadman

How do you know which is which? Should you be able to read the text on the outside or inside curvature?

That's a good question. If the numbers and letters look normal, does that mean you're looking at the inside of the lens or the outside?

I'm going to guess it's the inside of the lens, because if the lens is on your finger, you'd be looking down at the inside, right?

Hottchick · #6 (**permalink**) 12-29-2010, 04:28 PM

Quote:

Originally Posted by Bondjamesbond

That's a good question. If the numbers and letters look normal, does that mean you're looking at the inside of the lens or the outside?

I'm going to guess it's the inside of the lens, because if the lens is on your finger, you'd be looking down at the inside, right?

I did a search and found this question on ask.com, and guess what? It led me right back here to this question!
I didn't find anything that indicated whether the inversion mark was on the indie of outside of the lens, so we may have to rely on people who actually wear contact lenses with the inversion mark to answer this burning question for us.

mamcita · #7 (**permalink**) 02-08-2011, 02:58 PM

Quote:

Originally Posted by Hottchick

I did a search and found this question on ask.com, and guess what? It led me right back here to this question!
I didn't find anything that indicated whether the inversion mark was on the indie of outside of the lens, so we may have to rely on people who actually wear contact lenses with the inversion mark to answer this burning question for us.

So I guess the burning question is--is the inversion mark and "innie" or an "outie"?

Hottchick · #8 (**permalink**) 02-14-2011, 03:24 PM

Quote:

Originally Posted by mamcita

So I guess the burning question is--is the inversion mark and "innie" or an "outie"?

Yes, I suppose you could put it that way.

So guys, did any of you see a belly button in the above pictures?

Cheezhed · #9 (**permalink**) 08-29-2011, 05:22 PM

Quote:

Originally Posted by Hottchick

Yes, I suppose you could put it that way.

So guys, did any of you see a belly button in the above pictures?

Hm? What? Did you say something?

grashopper8 · #10 (**permalink**) 10-27-2011, 09:12 AM

The inversion mark is an "outie." This means that when you are looking down into the inside of the lens (at the surface that contacts your eye), the numbers should appear backwards. I just got a trial pair, and that's how I'm able to confirm this. (My contacts have the numbers 3 and 7 on them.)

On a separate note, I'm not the biggest fan of these lenses. Although the fit is more comfortable than my old Acuvue lenses, my vision is very blurry close-up (like within 2 feet). I don't think it's an issue with the prescription because it is the same as the one I had before. Meh.

Scienceguy · #11 (**permalink**) 10-27-2011, 09:47 AM

Quote:

Originally Posted by Hottchick

I didn't find anything that indicated whether the inversion mark was on the indie of outside of the lens . . .

You must have been really shook up by that picture, Hottchick. "indie of outside"? Don't you mean "inside or outside"?

Cheezhed · #12 (**permalink**) 11-16-2011, 04:16 PM

Quote:

Originally Posted by Scienceguy

You must have been really shook up by that picture, Hottchick. "indie of outside"? Don't you mean "inside or outside"?

In Hottchick's defense, the "inside or outside" comment came before the picture of the belly buttons.

Now who's shook up?

Scienceguy · #13 (**permalink**) 11-23-2011, 12:00 PM

Quote:

Originally Posted by Cheezhed

In Hottchick's defense, the "inside or outside" comment came before the picture of the belly buttons.

Now who's shook up?

You're right, Cheezhed. Now let's get back to the original question. Who can tell us about the inversion mark on PureVision Toric lenses?

Hottchick · #14 (**permalink**) 02-07-2012, 05:58 PM

Quote:

Originally Posted by grashopper8

The inversion mark is an "outie." This means that when you are looking down into the inside of the lens (at the surface that contacts your eye), the numbers should appear backwards. I just got a trial pair, and that's how I'm able to confirm this. (My contacts have the numbers 3 and 7 on them.)

Thanks for that explanation, grasshopper8.