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Medical Forum / General / Vision / June 2005miraflow and boston hydro2 rgp
I am using the ClearCare hydrogen peroxide based cleaner. However, I still feel that this alone does not completely clean my lenses. I heard MiraFlow is an excellent cleaner, but the box doesn't state it is for use with RGP lenses, just soft and hard (PMMA) lenses. I used to use the Lobob Optimum ESC cleaner, but I find Lobob's wetting drops make my eyes very gunky and sticky ... I prefer Ciba's Aquify drops. Since I'd like to stay all with the same brand without mixing and matching, I'd prefer to use MiraFlow as a cleaner (perhaps just once or twice a week as needed for an extra clean) prior to soaking in the ClearCare solution. Any suggestions? Thanks! > I am using the ClearCare hydrogen peroxide based cleaner. However, I > still feel that this alone does not completely clean my lenses. I [quoted text clipped - 11 lines] > > Thanks! Hydro2 is not a Boston RGP product. But, for sake of discussion, if you are indeed using Hydro2 plastic, I would not use Miraflow cleaner. It contains alcohol and may damage the partially hydrated rgp surface (which can be restored by soaking in saline solution.) Use instead Pliagel cleaner or Optimum (the later being the preferred cleaner.) --LB, O.D. Thanks for the quick reply. I'm certain my lenses are Hydro2s... for some reason I thought they were made by Boston... my mistake. If I use the Optimum cleaner, rinse it off completely, and then use AOSept ClearCare, can I use a different brand rewetting drop other than Optimum? As I said in my initial post, I find the optimum rewetting drops to be somewhat thick. They make my eyes itch and feel somewhat sticky. I seem to like the Aquify drops, however I'm concerned with mixing the Optimum cleaner, clearcare and aquify solutions. I understand that if I were using a multipurpose disinfectant/conditioner, it would be wrong to use a different brand rewetting drop. However, is mixing the brands OK in my case, since I would have rinsed all the Optimum off prior to putting it in the clearcare .. then the clearcare just turns into a saline solution anyway? Thanks for your help. I've been searching this newsgroup very often lately and your (Larry's) replies have been very helpful to me. I was glad to see you reply to my question. > Thanks for the quick reply. I'm certain my lenses are Hydro2s... for > some reason I thought they were made by Boston... my mistake. [quoted text clipped - 15 lines] > lately and your (Larry's) replies have been very helpful to me. I was > glad to see you reply to my question. You're welcome. Indeed, the resulting solution is saline and hence your lenses can be re-wetted with any product you choose. You should, of course, be certain to rinse off all cleaning products prior to storage in peroxide-based disinfectants like ClearCare. (If you have soft water, consider a final rinse with plain saline.) Have you tried putting your lenses in right from the ClearCare or following a quick rinse in plain old saline? That's what I do with my Hydro2 multifocals. The lens surface is self-wetting with a very low wetting angle and assuming you have a reasonable tear film, wetting solutions are sometimes not necessary with that material. That's one of the really special things about it----you can avoid issues with chemical sensitivity from solutions. Optimum wetting (and it's sibling Claris wetting) are the least likely products to cause a sensitivity reaction. The Claris product is a little less viscous. You can also try Theratears or Refresh Contacts/Refresh Tears as a wetting solution. Less gooey still. --LB, O.D. I will try not using drops at all... perhaps I don't need them. Also, you got me more interested in how the Hydro2 lenses work, so I did some research. I found the following information on http://www.vstk.com/rigid.htm (see my copy/paste below). After reading this, I wondered that since the surface of the Hydro2 lens is equivalent to a hydrophilic soft lens, would Miraflow really damage the Hydro2? Since Miraflow is intended for use on soft hydrophilic lenses, I'd like to guess that it would be safe... but I'm not a chemist so I really don't know. I'm still curious about this because I feel Miraflow is an excellent cleaner and I'd love to be able to use it on my lenses.. FILOFOCON A (Dk 40): HS-40 is a unique fluoro-silicone-acrylate copolymer with a hydrolyzable surface (no special surface treatment is required). When a finished lens is immersed in water the surface hydrolyzes producing a hydrophilic surface. The new surface consists of hydroxyl (-OH) groups equivalent to a soft hydrophilic lens surface. HS-40 lenses approach the comfort of soft lenses because the surface is the same. The surface is self-healing in that minor scratches re-hydrolyze in water maintaining the hydrophilic surface. Thanks again! |
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