How Long Can Daily Contacs Be Worn?

3scompany · #1 (**permalink**) 12-14-2007, 11:57 AM

I'm considering some daily contact lenses, but I have a rather basic question. How long is a "day"? Would that be eight hours? Twelve? I suppose that would vary from person to person, so maybe there are some people reading this that can tell me their own experiences. What's the longest you've gone with your daily contacts in? Have you ever worn them so long that you just couldn't stand them any more? I appreciate your sharing.

nicholas · #2 (**permalink**) 12-15-2007, 01:30 AM

I primarily wear RGPs for 16-20 hours per day but every now and then wear my Focus Dailies...and I wear those for the same amount of time. I would say they are safe to wear however long your "day" is; just don't sleep in them. My eyes feel more fatigued as the day goes on with Dailies (or any soft lens) compared to my Boston ES RGPs, which stay comfortable all day.

ken7700 · #3 (**permalink**) 05-15-2008, 11:13 PM

I would say this would be an individual thing. I do not think it would hurt to wear them all day, but it could effect different people different ways.

Railfan · #4 (**permalink**) 05-16-2008, 10:14 AM

Quote:

Originally Posted by nicholas

I primarily wear RGPs for 16-20 hours per day but every now and then wear my Focus Dailies...and I wear those for the same amount of time. I would say they are safe to wear however long your "day" is; just don't sleep in them. My eyes feel more fatigued as the day goes on with Dailies (or any soft lens) compared to my Boston ES RGPs, which stay comfortable all day.

Sounds like your contacts will tell you when they've had enough and are ready to "call it a day."

I also agree with Nicholas' statement that you should not sleep in daily disposables.

pheinbaugh2 · #5 (**permalink**) 05-23-2008, 08:23 AM

i sometimes wore mine for 2 or 3 days.

ebonyeyez · #6 (**permalink**) 05-27-2008, 05:55 PM

i wear them until its time to go to bed maybe 12 hours at most.

laninoso · #7 (**permalink**) 05-28-2008, 09:58 AM

I'm wondering, I would like to purchase the Acuvue (Toric) Advantage disposable lenses -- usually after 2 weeks you are to through them away and use a new pair -- 1st how many come in a box per eye and 2nd can you get away with wearing them longer than 2 weeks?

madeinshades · #8 (**permalink**) 05-28-2008, 10:35 AM

Quote:

Originally Posted by laninoso

I'm wondering, I would like to purchase the Acuvue (Toric) Advantage disposable lenses -- usually after 2 weeks you are to through them away and use a new pair -- 1st how many come in a box per eye and 2nd can you get away with wearing them longer than 2 weeks?

Hello laninoso. Welcome to Lens 101!

I checked lens.com and contactsamerica.com, but I couldn't find "Acuvue Toric Advantage." There's an Acuvue Advance, and an Acuvue Toric, but that was the closest I could find. The Acuvue Toric was being discontinued anyway. Most of the two week contacts come with 6 or 12 in a box.

And about wearing them more than two weeks--don't. You should never wear contacts for longer than they are designed to be worn, unless you don't wear them every day.
When they say "two weeks" that means you can wear them seven times if you sleep in them, fourteen times if you don't. So if you want them to last a little longer, skip a day now and then and wear your glasses. Bottom line, if you want your contacts to last a little longer, wear them less, not more.

I hope that helps!

laninoso · #9 (**permalink**) 05-28-2008, 10:44 AM

That is what it is Advance! Thanks for the info..... I've always wondered if, even if you take extremely good care of your contacts, could you wear them longer -- but, still it matters on how the "contact" was designed. It is good info because really, I like to try to make them last for as long as I can but, I don't want to gamble with my eyes. I want to check into the Acuvue Advance and purchase them. Where could I find the most cost efficient for a box per eye?

madeinshades · #10 (**permalink**) 05-28-2008, 10:56 AM

Quote:

Originally Posted by laninoso

I want to check into the Acuvue Advance and purchase them. Where could I find the most cost efficient for a box per eye?

Well, one of the things I really like about Lens 101 is that people feel like they can ask for advice without someone trying to sell them something.

I hesitate to advertise for contact lens companies, but since you asked directly, Lens 101 is sponsored by lens.com, so just go ahead and click on the red button near the top of the page and see what you think. I've heard some good things about them, so I don't think they'll let you down.

Be sure to let us know how you like the Acuvue Advance, okay?

Ricardo · #11 (**permalink**) 05-28-2008, 12:03 PM

I work with people who wear them as long as 14 hours or more.

I'm not sure if they use eyedrops or some solution at lunch time or not.

3scompany · #12 (**permalink**) 08-25-2009, 11:52 AM

Quote:

Originally Posted by ken7700

I would say this would be an individual thing. I do not think it would hurt to wear them all day, but it could effect different people different ways.

Thanks for the non-answer, Ken.

Boomika · #13 (**permalink**) 08-26-2009, 08:28 AM

Quote:

Originally Posted by ebonyeyez

i wear them until its time to go to bed maybe 12 hours at most.

i will wore lens for 6-8hours...according to my college timings

Beny · #14 (**permalink**) 08-28-2009, 08:39 AM

Quote:

Originally Posted by Ricardo

I work with people who wear them as long as 14 hours or more.

I'm not sure if they use eyedrops or some solution at lunch time or not.

what happens if we wore lens more than 10 hours?

Rock · #15 (**permalink**) 08-28-2009, 10:57 AM

Quote:

Originally Posted by Beny

what happens if we wore lens more than 10 hours?

Nothing happens ... you will feel some disturbance when you see...

Slitheen · #16 (**permalink**) 08-28-2009, 12:22 PM

Quote:

Originally Posted by Beny

what happens if we wore lens more than 10 hours?

Yes, I think Rock is right. If you try to wear your daily contacts for more than 10 hours they will probably get pretty uncomfortable before then. You will likely take them out before they're in that long, just don't take that as a challenge. Take care of your eyes.

MillersLastChance · #17 (**permalink**) 11-19-2009, 11:51 AM

Quote:

Originally Posted by nicholas

I primarily wear RGPs for 16-20 hours per day but every now and then wear my Focus Dailies...and I wear those for the same amount of time.

You wear your contacts for up to 20 hours? When do you sleep?

madeinshades · #18 (**permalink**) 01-21-2010, 12:12 PM

Quote:

Originally Posted by laninoso

That is what it is Advance! Thanks for the info..... I've always wondered if, even if you take extremely good care of your contacts, could you wear them longer -- but, still it matters on how the "contact" was designed. It is good info because really, I like to try to make them last for as long as I can but, I don't want to gamble with my eyes. I want to check into the Acuvue Advance and purchase them. Where could I find the most cost efficient for a box per eye?

How's it going laninoso? Have you bought any Acuvue Advance contact lenses yet?

3scompany · #19 (**permalink**) 01-26-2010, 02:56 PM

Quote:

Originally Posted by skumar

Daily wear contact lenses have pros and cons just like everything else:

1. These contact lenses known as soft lenses or daily wear lenses allow oxygen to pass through and reach the cornea, so they provide great comfort.

2. They are light and made of materials that do not irritate the eyes.

3. They are available in a great variety of colors.

4. Since they are thrown away each day of within 2-4 weeks the problems arising from incorrect storage or insufficient sterilization do not occur.

5. Protein or lipid deposits do not occur as also fungal or bacterial growth. Since lenses are replaced either daily or frequently the eyes will be protected from allergies too.

6. Sadly they are not durable.

7. Can only be used to correct a few eye sight problems.

8. They are comparatively more expensive than long lasting contact lenses.

Thanks for that nice, neat list skumar. Lists make explaining things so much easier sometimes.

Knotlob · #20 (**permalink**) 01-26-2010, 03:29 PM

Quote:

Originally Posted by Beny

what happens if we wore lens more than 10 hours?

I have worn Daily Disposable lenses for a couple of months and could wear them the whole of my waking day without any serious discomfort or having to use eye drops, etc. But most of my life I wore yearly Soft Lenses and have recently been wearing Biofinity lenses.

Having said that, at present Daily Disposable lenses tend to be made of the standard hydrogel material, which is less (oxygen) breathable than the latest generation Silicone Hydrogel lenses. So, wearing standard Daily Lenses for 14-18 hours/day (as I may have done on occasions) is usually not a good idea in regard to oxygen flow to the eyes.

You need to be guided by your Eye Care Professional, who will check to see if you have any increase in the capillaries growing into the whites of your eye (neovascularisation). If this is increasing, then you would need to reduce the contact lens wearing time or switch to a silicone hydrogel lens with better oxygen permeability.

I expect that in time, silicone hydrogel materials will become readily available in many Daily Disposable lenses.

knotlob

Droopy · #21 (**permalink**) 01-26-2010, 04:56 PM

Quote:

Originally Posted by Knotlob

I have worn Daily Disposable lenses for a couple of months and could wear them the whole of my waking day without any serious discomfort or having to use eye drops, etc. But most of my life I wore yearly Soft Lenses and have recently been wearing Biofinity lenses.

Having said that, at present Daily Disposable lenses tend to be made of the standard hydrogel material, which is less (oxygen) breathable than the latest generation Silicone Hydrogel lenses. So, wearing standard Daily Lenses for 14-18 hours/day (as I may have done on occasions) is usually not a good idea in regard to oxygen flow to the eyes.

You need to be guided by your Eye Care Professional, who will check to see if you have any increase in the capillaries growing into the whites of your eye (neovascularisation). If this is increasing, then you would need to reduce the contact lens wearing time or switch to a silicone hydrogel lens with better oxygen permeability.

I expect that in time, silicone hydrogel materials will become readily available in many Daily Disposable lenses.

knotlob

Nice answer, Knotlob. I don't know about you, but I'm really nervous about people misunderstanding something they read on Lens 101 and doing harm to their eyes.

I like to make it clear that readers have to be very careful. I think you've done that. Thank you.

Slitheen · #22 (**permalink**) 01-28-2010, 04:18 PM

Quote:

Originally Posted by Droopy

Nice answer, Knotlob. I don't know about you, but I'm really nervous about people misunderstanding something they read on Lens 101 and doing harm to their eyes.

Woah! How long has he had his contacts in?

Knotlob · #23 (**permalink**) 01-28-2010, 04:37 PM

Quote:

Originally Posted by Droopy

Nice answer, Knotlob. I don't know about you, but I'm really nervous about people misunderstanding something they read on Lens 101 and doing harm to their eyes.

I like to make it clear that readers have to be very careful. I think you've done that. Thank you.

Yeah, people here have reminded me before to be aware of careless people misinterpreting things - so now I try to make it crystal clear

knotlob

VAB · #24 (**permalink**) 01-29-2010, 12:33 PM

Quote:

Originally Posted by Knotlob

Yeah, people here have reminded me before to be aware of careless people misinterpreting things - so now I try to make it crystal clear

knotlob

That's a good idea. It's especially easy to be misunderstood in a situation like this when people can't hear the inflections in your voice and read your body language. You've got to be, as you said, crystal clear.

Then there's also those pesky grammar rules. Should I have put your words in quotation marks? Hmm . . . .

3scompany · #25 (**permalink**) 02-09-2010, 01:19 PM

Quote:

Originally Posted by VAB

Then there's also those pesky grammar rules. Should I have put your words in quotation marks? Hmm . . . .

Probably, VAB. You should have put "crystal clear" in quotation marks, as I just did.

lurker2010 · #26 (**permalink**) 02-09-2010, 01:53 PM

J&J has a one day Silicone Hydrogel lens. J&J plans on releasing the lens (in the US) some time in 2010. It's called Acuvue TruEye.

A day is defined as the time you're awake. You don't blink when you sleep. Some people may not be able to wear their lenses for a full day, or may need drops.

Don't wear your lenses for longer then recommended by your eye professional. Take them out sooner if you're not comforatable.

Hottchick · #27 (**permalink**) 02-09-2010, 03:19 PM

Quote:

Originally Posted by lurker2010

J&J has a one day Silicone Hydrogel lens. J&J plans on releasing the lens (in the US) some time in 2010. It's called Acuvue TruEye.

A day is defined as the time you're awake. You don't blink when you sleep. Some people may not be able to wear their lenses for a full day, or may need drops.

Don't wear your lenses for longer then recommended by your eye professional. Take them out sooner if you're not comfortable.

Good post Lurker. I like your definition of a day. For the purposes of daily disposable contact lenses, I think that's a good one.

Your advice about taking out a troublesome contact lens sooner rather than later is also good. I agree. Thanks.

Knotlob · #28 (**permalink**) 02-09-2010, 03:25 PM

Quote:

Originally Posted by lurker2010

J&J has a one day Silicone Hydrogel lens. J&J plans on releasing the lens (in the US) some time in 2010. It's called Acuvue TruEye.

A day is defined as the time you're awake. You don't blink when you sleep. Some people may not be able to wear their lenses for a full day, or may need drops.

Don't wear your lenses for longer then recommended by your eye professional. Take them out sooner if you're not comforatable.

J&J have some very high Dk silicone hydrogel lenses so it is surprising that they don't allow 24h wearing on the condition that the lens is binned after this time. For most people there are going to be obvious benefits of improved oxygen flow to the eye combined with the benefits of daily lenses for those who need them.

The 24h wearing would be useful for people on call or who have a complex work/sleep pattern. But as you point out, the eye care specialist would be the person to advise how long the lenses could be worn.

Any info on prices, since the silicone hydrogel lenses tend to carry a price premium?

knotlob

lurker2010 · #29 (**permalink**) 02-09-2010, 03:40 PM

Quote:

Originally Posted by Knotlob

Any info on prices, since the silicone hydrogel lenses tend to carry a price premium?

knotlob

The product was launched:
UK and Ireland September 2008
Germany April 2009
France, Denmark, and Sweden July 2009

You can check the pricing. I'm not sure which European sites I should be checking.

Knotlob · #30 (**permalink**) 02-09-2010, 04:42 PM

Quote:

Originally Posted by lurker2010

The product was launched:
UK and Ireland September 2008
Germany April 2009
France, Denmark, and Sweden July 2009

You can check the pricing. I'm not sure which European sites I should be checking.

Thanks for that. I've never heard of these and my last optician didn't mention them - only Acuvue Moist (Daily) .

They don't seem to be offered by all UK websites yet but they are readily available. Price is about 32% higher than Acuvue Moist (Daily) lenses on one website I checked.

knotlob

MillersLastChance · #31 (**permalink**) 02-24-2010, 12:32 PM

Quote:

Originally Posted by laninoso

That is what it is Advance! Thanks for the info..... I've always wondered if, even if you take extremely good care of your contacts, could you wear them longer -- but, still it matters on how the "contact" was designed. It is good info because really, I like to try to make them last for as long as I can but, I don't want to gamble with my eyes.

That's a very good point Laninoso. Saving money is a good thing, but not if you risk your eyesight. I'd hate to have a fat wallet but thick glasses, you know what I mean?

Railfan · #32 (**permalink**) 03-05-2010, 05:03 PM

Quote:

Originally Posted by pheinbaugh2

i sometimes wore mine for 2 or 3 days.

Two or three days? I hope you didn't do that very often.

3scompany · #33 (**permalink**) 03-26-2010, 12:32 PM

Quote:

Originally Posted by laninoso

That is what it is Advance! Thanks for the info..... I've always wondered if, even if you take extremely good care of your contacts, could you wear them longer -- but, still it matters on how the "contact" was designed. It is good info because really, I like to try to make them last for as long as I can but, I don't want to gamble with my eyes. I want to check into the Acuvue Advance and purchase them. Where could I find the most cost efficient for a box per eye?

Hi laninoso.

You bring up a very good point, and that's the importance of sticking to your contact lens schedule and not over-wearing your contacts.

I know times are tough and people are trying to stretch their dollars, but if you have to pay a doctor to treat your eye infection or injury from over wearing your contacts, I don't call that a bargain.

John Barlygreen · #34 (**permalink**) 06-21-2010, 10:53 AM

Quote:

Originally Posted by 3scompany

Hi laninoso.

You bring up a very good point, and that's the importance of sticking to your contact lens schedule and not over-wearing your contacts.

I know times are tough and people are trying to stretch their dollars, but if you have to pay a doctor to treat your eye infection or injury from over wearing your contacts, I don't call that a bargain.

That's a really good point you make, too, 3s company. It's not a bargain if you have to pay a doctor.

3scompany · #35 (**permalink**) 07-30-2010, 02:59 PM

Quote:

Originally Posted by John Barlygreen

That's a really good point you make, too, 3s company. It's not a bargain if you have to pay a doctor.

Yeah, if you spend the money on the contact lenses, and then have to pay a doctor to treat your eyes after over-wearing them, you've lost money.

discountlens · #36 (**permalink**) 09-10-2010, 01:30 AM

it totally depends from person to person..when your eyes feel that they no longer can bear those lenses then its time to remove the lenses...generally daily disposable Lenses dry out after being used for 7 or 8 hours...

nakedeyes · #37 (**permalink**) 09-10-2010, 11:09 AM

Quote:

Originally Posted by discountlens

it totally depends from person to person..when your eyes feel that they no longer can bear those lenses then its time to remove the lenses...generally daily disposable Lenses dry out after being used for 7 or 8 hours...

Then there are those who say "My eye doctor told me to take my contacts out every night, but I've had this same pair in my eyes for two weeks now, and they don't hurt."
Sometimes dry, damaged eyes don't hurt. So I wouldn't subscribe to the "keep your lenses in until they hurt" school of thought.

3scompany · #38 (**permalink**) 09-10-2010, 05:15 PM

Quote:

Originally Posted by nakedeyes

Then there are those who say "My eye doctor told me to take my contacts out every night, but I've had this same pair in my eyes for two weeks now, and they don't hurt."
Sometimes dry, damaged eyes don't hurt. So I wouldn't subscribe to the "keep your lenses in until they hurt" school of thought.

I agree 100%, nakedeyes. Take your contacts out before they start hurting. That's the best policy.

Knotlob · #39 (**permalink**) 09-10-2010, 05:32 PM

Quote:

Originally Posted by 3scompany

I agree 100%, nakedeyes. Take your contacts out before they start hurting. That's the best policy.

They say that RGP lenses will tell you in no uncertain terms when you have worn them long enough.

But I agree that there isn't much warning like that with soft lenses.

knotlob

MillersLastChance · #40 (**permalink**) 09-28-2010, 04:45 PM

Quote:

Originally Posted by 3scompany

Hi laninoso.

You bring up a very good point, and that's the importance of sticking to your contact lens schedule and not over-wearing your contacts.

I know times are tough and people are trying to stretch their dollars, but if you have to pay a doctor to treat your eye infection or injury from over wearing your contacts, I don't call that a bargain.

I agree with you completely, 3scompany. There are some people on this site that will tell you with great seriousness and sincerity that you can wear daily lenses overnight a few times. Before I would do that I would ask my eye doctor. This is a great site, and it's useful for tips on which contact lenses to buy and where to buy them from, but for medical/health advice, I'd rather speak to a doctor face to face.

lurker2010 · #41 (**permalink**) 09-29-2010, 10:35 AM

Quote:

Originally Posted by MillersLastChance

I agree with you completely, 3scompany. There are some people on this site that will tell you with great seriousness and sincerity that you can wear daily lenses overnight a few times. Before I would do that I would ask my eye doctor. This is a great site, and it's useful for tips on which contact lenses to buy and where to buy them from, but for medical/health advice, I'd rather speak to a doctor face to face.

This is a site where posters share their experiences and knowledge.

There are threads which contain misinformation which concerns me far more then a reader getting more then one day's use out of a lens marketed for one day use.

There are a couple of threads where posters ask how to convert their eye glass prescription to contact lenses. They want to wear contacts without a current contact lens exam. Without professional instruction.

There are threads in which people ask about sleeping with lenses (extended wear). I can't believe how much garbage is posted in those threads. One poster thought sleeping with lenses keeps then "funky fresh". Never a good idea to sleep in lenses not designed for extended wear. Probably not a good idea even then.

Petra · #42 (**permalink**) 09-29-2010, 10:58 AM

Quote:

Originally Posted by lurker2010

This is a site where posters share their experiences and knowledge.

There are threads which contain misinformation which concerns me far more then a reader getting more then one day's use out of a lens marketed for one day use.

There are a couple of threads where posters ask how to convert their eye glass prescription to contact lenses. They want to wear contacts without a current contact lens exam. Without professional instruction.

There are threads in which people ask about sleeping with lenses (extended wear). I can't believe how much garbage is posted in those threads. One poster thought sleeping with lenses keeps then "funky fresh". Never a good idea to sleep in lenses not designed for extended wear. Probably not a good idea even then.

What about the threads that give people instructions on how to make their own cleaning solutions? It's theoretically possible, I suppose, but I wouldn't want to try it. What do you think?

I was curious about that "funky fresh" comment you mentioned. I looked it up and found that the poster asked "Wouldn't your closed eyelids seal in the moisture and keep your contacts funky fresh?" That question sounded a little tongue-in-cheek to me. When you mentioned it above I thought someone made a statement like "Go ahead and sleep in you contacts. They'll be funky fresh in the morning."
I thought I detected a hint of sarcasm, too, like "Isn't it plain to see that the world is flat?" Perhaps he or she should have been more clear.

Anyway, yeah. This forum has a lot of good stuff in it, but there's also a dash of nonsense. I guess that just shows that the Webmaster doesn't edit posts very much. So if your answer is unpopular or even factually fishy, it won't just be screened out without a "fair trial" from other members. I think that's the way it should be.

lurker2010 · #43 (**permalink**) 09-29-2010, 11:08 AM

Quote:

Originally Posted by Petra

What about the threads that give people instructions on how to make their own cleaning solutions? It's theoretically possible, I suppose, but I wouldn't want to try it. What do you think?

I should have included that in my list. 3% hydrogen peroxide sold (at least in the US) for external use has impurities added, to improve the shelf life. It's certainly possible the dilution was done with tap water. People who suggest using that for disinfection are looking for trouble.

You can purchase 30-35% technical grade hydrogen peroxide and dilute it. That means paying for distilled water. Hydrogen peroxide at that concentration is considered hazardous. You'll pay a $$$ haz mat surcharge. You better know what you're doing before you handle the product.

At least in the US you'll save very little money. The case and platinum discs, bought by itself, isn't cheap.

Momalina2 · #44 (**permalink**) 09-29-2010, 11:44 AM

Quote:

Originally Posted by lurker2010

I should have included that in my list. 3% hydrogen peroxide sold (at least in the US) for external use has impurities added, to improve the shelf life. It's certainly possible the dilution was done with tap water. People who suggest using that for disinfection are looking for trouble.

You can purchase 30-35% technical grade hydrogen peroxide and dilute it. That means paying for distilled water. Hydrogen peroxide at that concentration is considered hazardous. You'll pay a $$$ haz mat surcharge. You better know what you're doing before you handle the product.

At least in the US you'll save very little money. The case and platinum discs, bought by itself, isn't cheap.

For all that trouble I'll just go to the store a buy a bottle of the manufactured solution. Who needs all that hazmat surcharge stuff?

Now, if I can just find a picture on this Internet wasteland of Homer Simpson in a radiation suit holding a glowing green bar with tongs, this posting would be complete. Too bad this image--which I've seen a hundred times as an occasional viewer of the Simpsons theme--seems to be completely absent.

Speaking of going through a lot of trouble . . .

Slitheen · #45 (**permalink**) 12-14-2010, 05:06 PM

Quote:

Originally Posted by Momalina2

For all that trouble I'll just go to the store a buy a bottle of the manufactured solution. Who needs all that hazmat surcharge stuff?

Now, if I can just find a picture on this Internet wasteland of Homer Simpson in a radiation suit holding a glowing green bar with tongs, this posting would be complete. Too bad this image--which I've seen a hundred times as an occasional viewer of the Simpsons theme--seems to be completely absent.

Speaking of going through a lot of trouble . . .

This was the best I could do:

VAB · #46 (**permalink**) 01-11-2011, 02:51 PM

Quote:

Originally Posted by Momalina2

For all that trouble I'll just go to the store a buy a bottle of the manufactured solution. Who needs all that hazmat surcharge stuff?

You're right Momalina2. If I have to jump through all those hazmat hoops to make my own contact lens solution, I'll just buy it, thanks.

3scompany · #47 (**permalink**) 01-17-2011, 03:36 PM

Quote:

Originally Posted by MillersLastChance

I agree with you completely, 3scompany. There are some people on this site that will tell you with great seriousness and sincerity that you can wear daily lenses overnight a few times. Before I would do that I would ask my eye doctor. This is a great site, and it's useful for tips on which contact lenses to buy and where to buy them from, but for medical/health advice, I'd rather speak to a doctor face to face.

I think you're right, MillersLastChance. I wouldn't want to experience eye pain or worse just because I wasn't in the mood to take my contacts out.

madeinshades · #48 (**permalink**) 01-20-2011, 05:55 PM

Quote:

Originally Posted by lurker2010

I should have included that in my list. 3% hydrogen peroxide sold (at least in the US) for external use has impurities added, to improve the shelf life. It's certainly possible the dilution was done with tap water. People who suggest using that for disinfection are looking for trouble.

You can purchase 30-35% technical grade hydrogen peroxide and dilute it. That means paying for distilled water. Hydrogen peroxide at that concentration is considered hazardous. You'll pay a $$$ haz mat surcharge. You better know what you're doing before you handle the product.

At least in the US you'll save very little money. The case and platinum discs, bought by itself, isn't cheap.

I think I'll just go to K-Mart.

John Barlygreen · #49 (**permalink**) 02-07-2011, 05:40 PM

Quote:

Originally Posted by madeinshades

I think I'll just go to K-Mart.

Why make it more difficult? It's not like contact lens solution costs a weeks' pay or anything.

3scompany · #50 (**permalink**) 02-15-2011, 03:27 PM

Quote:

Originally Posted by John Barlygreen

Why make it more difficult? It's not like contact lens solution costs a weeks' pay or anything.

You mean "why make it difficult and try to make your own contact lens solution when you can just buy it from the store?"

luvbostonxo2's · #51 (**permalink**) 11-17-2011, 08:00 PM

Quote:

Originally Posted by 3scompany

i'm considering some daily contact lenses, but i have a rather basic question. How long is a "day"? Would that be eight hours? Twelve? I suppose that would vary from person to person, so maybe there are some people reading this that can tell me their own experiences. What's the longest you've gone with your daily contacts in? Have you ever worn them so long that you just couldn't stand them any more? I appreciate your sharing.

ok when i read this message i thought gee this person is definately ocd.....one day contacts are worn for one daily cycle from morning to bed time or if your partying for three days until you decide to go to bed.....a wearing cycle can be 3 hours (perhaps working out) or out a rave( 3days without sleep) etc.

ONE WEARING CYCLE FOR HOWEEVER LONG YOU KEEP YOUR EYES OPEN....THERES NO OTHER WAY TO EXPLAIN THIS...!?!?!?!?!!?

Superschwin · #52 (**permalink**) 11-18-2011, 11:27 AM

Quote:

Originally Posted by luvbostonxo2's

ok when i read this message i thought gee this person is definately ocd.....one day contacts are worn for one daily cycle from morning to bed time or if your partying for three days until you decide to go to bed.....a wearing cycle can be 3 hours (perhaps working out) or out a rave( 3days without sleep) etc.

ONE WEARING CYCLE FOR HOWEEVER LONG YOU KEEP YOUR EYES OPEN....THERES NO OTHER WAY TO EXPLAIN THIS...!?!?!?!?!!?

THERE'S NO NEED TO SHOUT!!!!

One day is one day, not three. There's no other way to explain it. Anyone who wears daily disposable contact lenses can ask his or her doctor how long they can wear them. I doubt very much if an eye doctor will tell them it's okay to wear them for three days.

If you're at a rave that for some reason goes on for three days, you cannot wear one pair of contacts for that whole time. It's not about how long you keep your eyes open, but rather how long you can keep the lenses from being coated with mucus, eye gunk, smoke and whatever else might be floating around a three day rave party.

luvbostonxo2's · #53 (**permalink**) 01-06-2012, 12:26 AM

Quote:

Originally Posted by nicholas

I primarily wear RGPs for 16-20 hours per day but every now and then wear my Focus Dailies...and I wear those for the same amount of time. I would say they are safe to wear however long your "day" is; just don't sleep in them. My eyes feel more fatigued as the day goes on with Dailies (or any soft lens) compared to my Boston ES RGPs, which stay comfortable all day.

Acuvue tru eye is one of the better one day disposables because it is the only silicone hydrogel with approx 98% oxygen transmission though the lens. They are not approved yet for extended wear if and when. But can be worn round the clock.

I wear my rgp lenses as well up to 18+hours in a wearing period and One day acuvue tru eye one days are fantastic for single use.

nakedeyes · #54 (**permalink**) 01-06-2012, 11:56 AM

Quote:

Originally Posted by Superschwin

It's not about how long you keep your eyes open, but rather how long you can keep the lenses from being coated with mucus, eye gunk, smoke and whatever else might be floating around a three day rave party.

I don't know why anyone would want to wear contact lenses for three days in such an environment. I'd rather squint.

Slitheen · #55 (**permalink**) 01-12-2012, 01:28 PM

Quote:

Originally Posted by luvbostonxo2's

Acuvue tru eye is one of the better one day disposables because it is the only silicone hydrogel with approx 98% oxygen transmission though the lens. They are not approved yet for extended wear if and when. But can be worn round the clock.

I wear my rgp lenses as well up to 18+hours in a wearing period and One day acuvue tru eye one days are fantastic for single use.

You do all this with your eye doctor's knowledge and approval, right?

EV123 · #56 (**permalink**) 02-03-2012, 02:49 PM

Daily disposables are meant to be worn all day. You throw them out at night before bed, and put in new contacts in the morning. Then repeat.

Hope this helps!

UNIT · #57 (**permalink**) 02-03-2012, 03:35 PM

Quote:

Originally Posted by EV123

Daily disposables are meant to be worn all day. You throw them out at night before bed, and put in new contacts in the morning. Then repeat.

Hope this helps!

Yes, that would be the "disposable" part.