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Medical Forum / General / Vision / September 2005Renu with "moisture lock"
I've used almost a whole bottle of the stuff. When rinsing my lenses with it, I dump the extra into a plate, which I then flick into the bathtub and let air-dry. There is significant buildup in the plate. When I scrub it off with a nail brush (it's sort of like soap scum/dried toothpaste and needs mechanical action to remove) it acts like soap and makes suds. I would assume that since my lenses are always wet there is no particular worry about crud building up on the lenses, but I'm a worrier anyway. There seems to be no particular reason to use this rather than the Renu No-Rub (I rub anyway) without moisture lock, and the buildup thing makes me uncomfortable. What do you guys think? Second problem: when I insert my lenses, I put a drop of the stuff into the lens before insertion. Unlike with the old fashioned Renu No-Rub without moisture lock, my eyes feel like I have grit in them for a while -- say 10 minutes -- after insertion. When the "grit" is there, running my fingers over my closed eyelids tickles like something in my eye. I don't see how physical grit can get into the system, but what about tiny air bubbles? What could it be?  SignatureCheers, Bev =============================================================== Life's journey is not to arrive at the grave safely and in a well preserved body, but to skid in sideways, totally worn out, and shouting HOLY sh.t!!! WHAT A RIDE!!! > rub anyway) without moisture lock, and the buildup thing makes me > uncomfortable. What do you guys think? Saline leaves a deposit too, when it dries. Of course your residue lathers, too, but otherwise it'd just be saline. Methinks you fret too much. > Second problem: when I insert my lenses, I put a drop of the stuff into > the [quoted text clipped - 3 lines] > over my closed eyelids tickles like something in my eye. I don't see how > physical grit can get into the system, but what about tiny air bubbles? Absolutely you can get bubbles. I never recommend that drop in the lens before insertion. I don't expect it to help anything, and it makes handling more difficult. But when I suggest a patient quit doing it, they look at me like I'm crazy. > What could it be? pH, dissolved nitrogen, or the actual moisture-lock ingredient? Bottom line, some people don't like the newer ReNu. -MT > > rub anyway) without moisture lock, and the buildup thing makes me > > uncomfortable. What do you guys think? > > Saline leaves a deposit too, when it dries. Of course your residue lathers, > too, but otherwise it'd just be saline. This stuff is really thick and solid... > Methinks you fret too much. Probably, but my past history with CLs has convinced me that it's not all crazy. I really dread opening up the first vial of new lenses for fear that they won't fit (like my previous Coopers) and I'll have to take SOMEBODY to court. > > Second problem: when I insert my lenses, I put a drop of the stuff into > > the [quoted text clipped - 9 lines] > to help anything, and it makes handling more difficult. But when I suggest a > patient quit doing it, they look at me like I'm crazy. It seems to make them settle in sooner. My right one takes up to an hour before it stops fuzzing up. Just for you, though, I'll stop and see if it makes any difference. These lenses: Sunsoft Toric Multiples Div II, Ocular Sciences Methafilcon 8.5 R: +3.50 -2.25 x 90 L: +5.75 -2.25 x 80 Provide better vision than my previous attempts. Is it too much to hope for that I got lucky this time? > > What could it be? > > pH, dissolved nitrogen, or the actual moisture-lock ingredient? Bottom line, > some people don't like the newer ReNu. It feels sticky like the stuff you use for RGPs. I didn't like that either. SignatureCheers, Bev ============================================= If you are going to try cross-country skiing, start with a small country. > These lenses: > Sunsoft Toric Multiples Div II, Ocular Sciences Methafilcon > 8.5 R: +3.50 -2.25 x 90 > L: +5.75 -2.25 x 80 I love Sunsoft, tho I don't use them as often these days. > Provide better vision than my previous attempts. Is it too much to hope > for > that I got lucky this time? It's reasonable. I find SSM's consistent and predictable. -MT > > > rub anyway) without moisture lock, and the buildup thing makes me > > > uncomfortable. What do you guys think? [quoted text clipped - 27 lines] > before it stops fuzzing up. Just for you, though, I'll stop and see if it > makes any difference. The next day I added no drops. The left lens generally settles right away, but the right one took two hours. Today I added drops of saline. Right lens settled within minutes and I had no itchy bubbles. So from now on the procedure is (1) use up the sticky Renu and buy the other stuff next time and (2) rinse with saline in the morning and add a drop to each lens. SignatureCheers, Bev xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx "We returned the General to El Salvador, or maybe Guatemala, it's difficult to tell from 10,000 feet." -- Anon. The new ReNu was invented to help the newest silicone hydrogels stay cleaner. The newest lenses like Advance,Oasis, O2Optix and Purevision tend to hold the lipid component of tears onto the lens, the moisture-lock breaks away those lipids, once again allowing the water to enter the lens. If you wear silicone-based lenses, you need the new stuff. If you don't, the old is fine. The optifree rep was just in my office and disputes this notion, noting that the new renu uses a small molecule that will penetrate the silicone lenses easily, thus causing, at least potentially, the same problems as the old renu (chemical irritation, staining, dryness). w.stacy, o.d. >The new ReNu was invented to help the newest silicone hydrogels stay >cleaner. The newest lenses like Advance,Oasis, O2Optix and Purevision [quoted text clipped - 4 lines] > > |
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