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Medical Forum / General / Vision / June 2006O2Optix vs Acuvue Oasys
Has anyone tested both the O2Optix and Acuvue Oasys and can tell the difference in comfort? I am on my second day of wearing the new O2Optix after I have been wearing mostly high water content (73%) soft lenses for nearly 20 years. I can confirm that I find the O2Optix is definitely fairly stiff in material as opposed to some other soft lenses, in particular the high water content lenses I am used to which were rather thin and flexible. My previous lenses were 14.3 in diametre and base curve of 8.8, whereas the O2Optix is 14.2/8.6. My optometrist said it would not make any difference for me. The Acuvue Oasys is 14.0/8.4. I read somewhere in this group that the Acuvue Oasys appears to be much thinner and not as stiff as the O2Optix - has anyone experienced the same? I had a hard time last night (after my first few hours of wearing the O2Optix) to remove the lenses from my eyes - I never ever had any problems with that before! Also, it feels a bit as if the lenses are putting a constant slight pressure on my eyes - is this normal? I may add that the main reason why I am looking at silicon hydrogel lenses is that I experienced a minor irritation under my right eye lid about 3 weeks ago, and I had to stop wearing them. The local optometrist subscribed some eye drops and anti allergy tabs. He suggested the occurance of such an irritation happens mostly with high water content lenses. Any input, especially from those who TESTED BOTH LENSES, would be much appreciated! G'day from Australia ... Eye2Eye The Oasys is not available in australia, so it is moot to discuss the differences. The acuvue advance is available and this is much the same as the O2Optix. The materials are slightly different, the Dk is much the same, they are designed for daily wear and aimed at the full time lens wearer to provide more oxygen and less dehydration. If you have GPC, then there is a good chance that the problem has not gone away yet and this is causing the continuance of symptoms. 3 weeks is not enough for these symptoms t resolve. You are better going for dailies for the time being as they have no deposits when you put them in and are discarded each night. dr grant high back from melbourne. > The Oasys is not available in australia, so it is moot to discuss the > differences. > You are right, it is not yet available in Australia, but it is in most of Europe and in the USA. I was hoping there was experience from those countries that could be shared here. > If you have GPC, then there is a good chance that the problem has not > gone away yet and this is causing the continuance of symptoms. 3 weeks > is not enough for these symptoms t resolve. Thanks, I was not aware what GPC stands for, but now I do. As per my optometrist, it is only mild but he did not diagnose that as being GPC, rather than CLPC - whereby CL would stand for Contact Lens, so it is the same? > You are better going for dailies for the time being as they have no > deposits when you put them in and are discarded each night. I had to put my glasses on this morning, after I had difficulties for the second night the remove the O2Optix, and I feel my eyes, in particular my right one feels dry and it feels a bit irritated (under the lid). I really hope that this will go away, and I can continue wearing contacts, as I hate wearing glasses. I went to do a LASIK assessment a few days ago, but I turned out not to be suitable. Only alternative would be PRK which I cannot see getting done on my eyes. I think your OD might be barking up the wrong tree if he is trying to treat giant papillary conjunctivitis with silicone-hydrogel lenses. I would tend to go with Dr. Grant on the daily disposable call. Silicone hydrogels have been blamed in recent months for an increase in GPC, probably due to the rougher surface. In my experience, the Oasys does have a much smoother, slicker surface. DrG I switched to O2 Optix from dailies last year because I was finding the others too drying towards the end of the day. I've found the silicon hydrogels much more comfortable and experienced none of the symptoms described. I wear them 12+ hours a day, 6 days a week and haven't had any discomfort. I also read that they're less prone to protein deposits than the regular disposables too. >I think your OD might be barking up the wrong tree if he is trying to >treat giant papillary conjunctivitis with silicone-hydrogel lenses. I [quoted text clipped - 5 lines] > >DrG I don't think you understood a thing. I not only prescribe silicone-hydrogels, but I wear them as well. I think that I am more acquainted with the medical literature than you are, and the literature has reported a higher incidence of GPC associated with silicone hydrogel lens wear. Why not "google it" and see for yourself. DrG >I think your OD might be barking up the wrong tree if he is trying to treat giant papillary conjunctivitis with silicone-hydrogel lenses. I would tend to go with Dr. Grant on the daily disposable call.< I don't think he is trying to TREAT GPC with prescribing SiH lenses. He only mentioned to me that the symtoms I have appear to be more common with soft high water content lenses. I am not sure if this is a valid statement, but it triggered my research to find alternative lenses, in particular after I was recently assessed not suitable for LASIK. >Silicone hydrogels have been blamed in recent months for an increase in GPC, probably due to the rougher surface. In my experience, the Oasys does have a much smoother, slicker surface. < This is interesting - where did you have this information from. Can you give me the source? And how do you know about the Oasys? Have you tested it for yourself? Is the lens material thinner than with the O2Optix? I find the O2Optix so thick! For some reason I also have the impression is is larger than the ones I have been using, although by comparing the diametre as per description, it is supposed to be .1mm smaller. Your optom is right about the incidence of CLPC with higher water lenses. Here is a link about the silicone hydrogels: http://www.optometry.co.uk/files/2a85c209e250a4b2b829811247ea977d_jones20020920.pdf This article specifically says that the incidence of CLPC appears to be higher in silicone-hydrogel lenses, probably most of it in extended wear patients. How do I know about Oasys? I wear them, and I fit them. Basically, CLPC has been seen more frequently in my practice in patient who sleep in their silicone hydrogel lenses. However, this condition can easily be managed and cured by simply not sleeping in lenses. DrG By the way, it's not a huge problem. The incidence is less than 10 percent. DrG >Your optom is right about the incidence of CLPC with higher water lenses. [...] This article specifically says that the incidence of CLPC appears to be higher in silicone-hydrogel lenses, probably most of it in extended wear patients. < This sounds like two conflicting statements to me ... I have been wearing soft contact lenses for nearly 20 years and for the last perhaps 8 years or so disposables (monthly) high water containing ones (73%). My optom said CLPC appears to happen more frequently with wearers of these types of lenses, while the article you are quoting says the SiH lenses appear to attract more CLPC problems. It proabably all depends on who you ask - everyone seems to have different opinions on these things. I don't see a contradiction at all. It is true that the silicone-hydrogels exhibit less in-vivo and in-vitro drying. This makes them better for dry eyes. High water hydrogels are perhaps the worst for dry eyes. More than 2/3 of all disposable lenses are in the high water category. Some of the risk factors for CLPC are dry eyes and seasonal allergies. CLPC tends to be seasonal. So, there is a mechanical component, i.e. lens edge, dry surface, and an immunological component, i.e. individual. A silicone-hydrogel lens will "feel" less dry because of less evaporative loss, but it can still present a mechanical trigger for the formation of CLPC. Nobody understands exactly why, and so there is speculation regarding the high elastic modulus, surface chemistry, etc. Furthermore, they have classified CLPC into two kinds: local and regional, with respect to how many quadrants of the eyelid are affected. It seems like the si-hy lenses are more prone to local CLPC, whereas older high water hydrogels are more prone to regional CLPC. My son has lots of seasonal allergies, and is very prone to the development of CLPC. The only lenses I have found that he can tolerate are Focus Dailies. They tend not to cause the CLPC, but he does complain about dryness. So, there is some other variable at work, and that is possibly the buildup of tear film residue on the surface of the lens. The silicone-hydrogel technology is in its infancy, and there will be more improvements as the "perfect" contact lens material continues to evolve. The slightly increasing, but still low incidence of CLPC with silicone-hydrogel lenses has not dampened my enthusiasm for them at all. DrG Adding to this, I am experiencing a big increase in allergic conjunctivitis at the moment (in autumn? wtf????) GPC = CLPC for all intents and purposes. It should take more time to resolve properly and dailies are the best short term fix I find. Biofinity is about to release next month, it is the first of the second gen SiH lenses to release here. They may be an option in a few months. dr grant > Adding to this, I am experiencing a big increase in allergic > conjunctivitis at the moment (in autumn? wtf????) [quoted text clipped - 5 lines] > > dr grant Is O2 Optix not already a 2nd generation SiH?? Dom > Silicone hydrogels have been blamed in recent months for an increase in > GPC, probably due to the rougher surface. In my experience, the Oasys > does have a much smoother, slicker surface. That's my cue. First, see <URL:http://groups.google.com/group/sci.med.vision/msg/780b7a33ef2da19a> for my situation as of May 2004. Since then, here's what happened: * Tried Focus Dailies. Same crusting issue occurred as with the Night & Day lenses. * Switched to Acuvue 1-Day. Worked great. I didn't enjoy the daily lens insertion and removal, but at least I didn't have to clean the lenses as well. * In early 2005 I tried Ciba's O2Optix and have been wearing them successfully ever since. I keep a clean washcloth in my shower that I only use to scrub my eyelids with hot water (Aside: I've been changing this cloth once a week; should I change it more often?) during the shower. I wear the lenses on a six-day, five-night schedule (occasionally one day more or less) and use one drop of Patanol twice a day when the lenses are out. Following this regimen, I feel I have the best of all worlds: Crusting really isn't an issue any more, and I get to use extended-wear lenses without worrying about low oxygen permeability.  Signature<URL:http://www.pobox.com/~ylee/> PERTH ----> * Homemade 2.8TB RAID 5 storage array: <URL:http://groups.google.ca/groups?selm=slrnd1g04a.5mt.ylee%40pobox.com> I Just got the o2 Optix and I am having the same problem with them putting pressure on my eyes. Their the only kind of contacts I have tried but Im not going to keep them I dont think. They hurt to keep them in all day! I dont have a problem Removing the lenses but getting them in is difficult I find them too stiff to place on my eye or they will sometimes bend over too. Hope this kinda helps. Bye! :-) > Has anyone tested both the O2Optix and Acuvue Oasys and can tell the > difference in comfort? [quoted text clipped - 36 lines] > G'day from Australia ... > Eye2Eye I Just got the o2 Optix and I am having the same problem with them putting pressure on my eyes. Their the only kind of contacts I have tried but Im not going to keep them I dont think. They hurt to keep them in all day! I dont have a problem Removing the lenses but getting them in is difficult I find them too stiff to place on my eye or they will sometimes bend over too. Hope this kinda helps. Bye! :-) > Has anyone tested both the O2Optix and Acuvue Oasys and can tell the > difference in comfort? [quoted text clipped - 36 lines] > G'day from Australia ... > Eye2Eye I just ordered O2 Optix for the first time. Being a diabetic, my doc said they are the ones I should have so I get more O2 to my eyes. They do dry out more easily then the vial contacts I still have, especially in air conditioned rooms. But, I don't find it inconvenient to put frequently put drops in, it helps remind me to drink more water. Other than the drying, I find them comfortable and I think the rigidness of the contacts makes them easier to handle. I hate fusing with flexable lenses on my fingers when trying to put them in. I just got the Acuvue last night there just the Acuvue 2 I went to my eye Dr. and he gave me a trial of these.They dont hurt my eyes at all! and I put them in at 6 this morning and normally with the o2 optix I would already have them out becuase they were hurting. The Acuvue are much easier to get in I think. And plus a nice feature that Acuvue has with there contacts is they have a 1-2-3 mark on the contact that you can hold up to the light to see if its on the right way or not. With the o2 optix I was having to add eye drops to my eye many times during the day 1) do get rid of the dryness and 2) to try and help the pressure they put on my eye it felt like there was something poking my eye or I had an eye lash in my eye. I got home pulled the contacts out and looked around and there wasnt I put them in the next day and I had the same problem. With the Acuvue that I got last night I added them once today. No joke! they dont dry out as easy In my opinion. I can see a lot better with the Acuvue too! Just thought I would give my advice about Acuvue2 contacts now that I have tried them. Thanks Andrew for your input - really appreciated! I have actually avoided wearing contacts for a number of weeks (due to the GPC problem), and only recently did I put a fresh pair of my original high water content lenses in but it was still feeling odd in my right eye. I have been considering refractive laser surgery over the last couple of months, and I have now found a clinic where I feel they were answering all my (thorough) questions in detail and to my satisfaction plus their assessment resulted in a positive outcome. GPC can be caused by dry eyes. People with dry eyes need to be cautioned about refractive surgery. GPC is a benign and treatable condition. Any complication from refractive surgery may not be as benign and as treatable. At least that's my opinion. DrG > Has anyone tested both the O2Optix and Acuvue Oasys and can tell the > difference in comfort? I've been fitting oasys for a while now with fairly good, but not as good as hoped, results. Some people love them and some people hate them, especially after a couple of weeks wear. I just put in O2 optics lenses and will be doing some comparisons (one of each on each eye) and will report back. I do think that a significant number of people will prefer Acuvue 2 to either, unfortunately. w.stacy, o.d. I've fit them all. In my experience, nobody "hates" the Oasys and most, fortunately, love them. A significant number of my VSP patients prefer Acuvue 2 because of the low price. DrG Did you do much same patient comparison of the o2o and oasys? I'd say most people love the oasys, but a significant number complain of irritation and redness developing after the lenses are 1-2 weeks old (I'd say maybe 10%). Maybe the air is different in CA. What solutions do you put them on? w.stacy, o.d. >I've fit them all. In my experience, nobody "hates" the Oasys and >most, fortunately, love them. A significant number of my VSP patients [quoted text clipped - 3 lines] > > Well I've personally worn both Oasys and O2Optix but no more than a couple days each. For whatever reason the Oasys lens or solution were interferring with my eyes causing redness as did Acuvue Adv. My doctor suggested that maybe I just can't tolerate the brand, which seems weird but maybe he is correct because I was able to wear the O2Optix and Proclears with no problem. If I could I would definitely wear Oasys, they were the most comfortable lens, Proclear also but they're really fragile if you're not careful.......O2Optix I wasn't sure if I just needed adjustment time or not because like I said I didn't wear them for more than a few hours the 2 days I wore them, but they were simply Okay. I had a slight eyeache when I took them out but it could have been jus debri on the lens. They felt like my Biomedics 55's when I first started wearing them. I think I'm gonna be going with Proclear. William Stacy a écrit > Did you do much same patient comparison of the o2o and oasys? I'd say > most people love the oasys, but a significant number complain of [quoted text clipped - 11 lines] > > > > Well I've personally worn both Oasys and O2Optix but no more than a couple days each. For whatever reason the Oasys lens or solution were interferring with my eyes causing redness as did Acuvue Adv. My doctor suggested that maybe I just can't tolerate the brand, which seems weird but maybe he is correct because I was able to wear the O2Optix and Proclears with no problem. If I could I would definitely wear Oasys, they were the most comfortable lens, Proclear also but they're really fragile if you're not careful.......O2Optix I wasn't sure if I just needed adjustment time or not because like I said I didn't wear them for more than a few hours the 2 days I wore them, but they were simply Okay. I had a slight eyeache when I took them out but it could have been jus debri on the lens. They felt like my Biomedics 55's when I first started wearing them. I think I'm gonna be going with Proclear. I have tried the o2 optix as well as the Acuvue2 like in my response before. I still have the Acuvue2 and I like them VERY well. I put them in at 6am and dont take them out till 10pm, and I can never feel there in. The o2optix I could not wait till the day was over and go home and take them out. I thought they would turn me against contacts because they hurt so bad I just didnt want to put them back in my eye. So my Dr. let me try the Acuvue2 and there great! Eye2Eye I would Give the Acuvue2's a try before you just give up on contacts! A nice feature with the Acuvue is they have a 123 written on them to see if there inside out or not and they have a blue tint to them makes it easier to see when your taking them out. If you have any more questions I check this every now and then so just ask. Good luck!! > Well I've personally worn both Oasys and O2Optix but no more than a > couple days each. For whatever reason the Oasys lens or solution were [quoted text clipped - 10 lines] > first started wearing them. > I think I'm gonna be going with Proclear. well for the first time in a couple weeks i was able to wear my contacts the entire day. I had them in from 9AM until 10PM. These lenses were the Acuvue Oasys so it seems that I have finally found a lens that will cooperate with my eyes. I'm really excited and we'll see if hopefully extended wear will be an option. Andrew ha scritto: > I have tried the o2 optix as well as the Acuvue2 like in my response > before. I still have the Acuvue2 and I like them VERY well. I put them [quoted text clipped - 22 lines] > > first started wearing them. > > I think I'm gonna be going with Proclear. Andrew ha scritto: .... what? > well for the first time in a couple weeks i was able to wear my > contacts the entire day. I had them in from 9AM until 10PM. These [quoted text clipped - 30 lines] > > > first started wearing them. > > > I think I'm gonna be going with Proclear. I have no clue why that was there.....lol but I'm still wearing the oasys....I'm having a few problems but its better than not being able to wear lenses at all which was what was probably going to happen had I not switched. I have minor blurring problem but the contacts are still comfortable the entire day....as long as you combo them with Clear Care solution. My eyes seem to be able to tolerate nothing else. ejbeas...@gmail.com.... I had the same problem with the acuvue 2 for a couple of days maybe even a week.. but it was nothing I couldnt stand it just felt like they were dry.. Now I cant even tell there in! there great! You should talk to your docter and see if Aquify is ok for you to use. Thats what I use and I have no problems The Aquify is made my CIBA vision. If he says it is okay ask him if he has a sample you can try. When I first got my contacts I used the o2 optix with the Aquify. The o2 optix were REALLY painfull. So I went back to my docter and he let me try another pair and that was the Acuvue and I used it with the Aquify solution. I have had the Acuvue for about 2 months or so and have had no problems. With the blurrying problem I have the same problem and just about everyone I talk to that has contacts has it. For me when Im really focused on something like the computer or the white board they will get blurry. I didnt notice that at the time. I went to my docter and he said that I am not blinking enough. So I tried to blink at least once every 5 sec or so, and I dont have that problem as much anymore. So try to blink a little bit more and see if that helps, and if they still get blurry kinda give your eyes a soft rub. Hope this works!! Don't Give up!! just give it time. > I have no clue why that was there.....lol but I'm still wearing the > oasys....I'm having a few problems but its better than not being able > to wear lenses at all which was what was probably going to happen had I > not switched. I have minor blurring problem but the contacts are still > comfortable the entire day....as long as you combo them with Clear Care > solution. My eyes seem to be able to tolerate nothing else. Well, Bill, I have used both lenses for quite awhile, and have even switched a few out of the o2o into the Oasys. I have also switched some out of the Oasys into Proclear, or Purevision. My impressions are that the Oasys material is more wettable, has a lower modulus, and perhaps a better edge profile, but those are just my opinions. I've heard some rumors about the deposit formation on Oasys, but have not confirmed it at all. I have been wearing the Oasys for some time, now. We tend to use more Optifree than ReNu by about 10:1. DrG We have transferred hundreds of happy Acuvue 2 wearers with moderate GPC into Advance, with good results for the first year or so. At about 18 months we are seeing more raging GPC, which seems to support the idea that silicone hydrogels get dirty quicker and set off the patients immune system response in fewer months than the older lenses did. BUT, when we return these people to Acuvue 2, they are ecstatic once again. I think we can look at these responses in the same way that farmers look at planting crops. When they rotate a farm field from corn one year and soybeans the next, they cut down on insect infestation and balance the nutrients in the soil better. I think we can modulate the immune system response in GPC patients by rotating them in and out of traditional hydrogels. IMHO the issue isn't that the lenses "get dirtier quicker," but rather the lens surface probably generates greater friction. Some blame the edge design, and others blame the higher elastic modulus (although I cannot understand that mechanism). If you look at lenses on that basis, the lenses with the least amount of surface friction, aka "slickness" would be the Proclear Compatible and the Acuvue Oasys. Next would be the Purevision, followed by the rest. Vistakon actually did this study, by the way, but long before they did, I used this criterion to evaluate contact lenses. By simply observing the physical properties of the lens as it dries out, I found that the Acuvue Advance actually gets "sticky." Fortunately, I did not fit very many patients with the Advance, and traded what I did have for the Oasys. I also have a fairly large pool of people who wear their silicone hydrogels overnight, and I have yet to see anything but a small increase in the incidence of GPC. DrG Hi, I was diagnosed with GPC back in April and have been using patanol. There are still few bumps present underneath of the eyelid,however; luckily, most have been gone in a month. I am sure there is an improvement in this treatment on GPC. I am wondering if I shall resume (or just give it a try to see how my eyes feel after not using contacts for 4-5 weeks) wearing my Advance lens. Will that be a good idea as "bumps" are not all gone yet? According to what I have read online, GPC could be recurring. To avoid that, Shall I let my OD allow me try some other kind of lens as A. Advance tends to have deposits so bad? > IMHO the issue isn't that the lenses "get dirtier quicker," but rather > the lens surface probably generates greater friction. Some blame the [quoted text clipped - 16 lines] > > DrG What does your doctor say? DrG Doctor said that I could try but its best to wait till sympton is completely gone. Maybe I just should wait. | >>I was diagnosed with GPC back in April and have been using patanol. | >>There are still few bumps present underneath of the eyelid,however; [quoted text clipped - 13 lines] >Doctor said that I could try but its best to wait till sympton is >completely gone. Maybe I just should wait. That normally is best. FYI, most, in fact probably all, people I have treated with GPC in the past 5 years have all been poorly compliant with their lens care and that was the real etiology of their condition. That is, they didn't consistently clean their lenses as instructed, didn't change them as often as instructed, and kept them in their eyes longer than instructed. IOW, they disregarded my prescribing instructions. And typically, it's not just a slight disregard like wearing a pair of contacts for 3 weeks versus 2 weeks of daily wear. It's more like wearing a pair for 3 months versus 2 weeks. And it's not like just not cleaning the lenses once in a while, it's more like never cleaning the lenses. GPC was something I dealt with a lot back in the days of yearly-replacement lenses. People had to enzyme their lenses, use a seperate strong daily cleaner and, basically, it was a lot more complex, costly and burdensome. In 2006, patients have it pretty easy, IMO. 1-Day, disposable and frequent-replacement lenses have, for the most part, in my practice KILLED off symptomatic contact-lens related GPC, which is a good thing. I see maybe one case every six months now. I guess it would be a lot like what flourinated water has done for dental caries in the US. And once people have GPC, they have, in my experience, have a greater predisposition for it to recur versus a "virgin eye". So my ultimate advice would be to follow the instructions of your eye doctor. |
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