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I have been wearing monthly disposable Frequency 55 contact lenses for about six years. I order them from various USA contact lens websites in boxes of six rather than from the UK as they are approximately a third of the retail price in the UK. On the American websites they appear to be some of the cheapest monthlies on the market. As contact lens wearers may know, lenses in the UK may lurk under all sorts of brand names- I homed in on these contact lenses myself having worked out that my expensive lenses from a high street optician were in fact Frequency 55 from Cooper Vision. I have saved hundreds of pounds in the last six years.
I would recommend them for the relatively high water content they contain which makes them comfortable for up to twelve hours. I don't think these lenses would take you through a day at work and then an evening out without resting your eyes for an hour or so. If I have had them in too long I feel a slight gritty sensation as the lenses dry out in your eyes. I don't find saline or eye drops help at all in making the experience more comfortable; I think it is best to remove the lenses and give your eyes a break for at least an hour.
I wear these lenses Monday to Friday and occasionally on weekend days and I find I get about a month and a half from them before they become too thin to handle and/or the vision through them deteriorates- ie bus numbers in the distance become blurred again!
I was first introduced to this product nine years ago when I first started wearing contact lenses. At the time I was really scared about trying them out but I found them really comfortable to wear. They are very slightly tinted in blue so that they are easier to find if you lose it, and having blue eyes, I also have found that they enhance my natural eye colour as well. Obviously if you have any other eye colour, this would not happen, but it was a bonus for me. It is also easy to tell if they are inside out or the right way when they are pretty new, but this becomes more and more difficult to tell as you go through the month.
The health of my eyes has been pretty good over the years whilst using this product. I often wear them longer than is recommended (15-16 hours rather than 12) and find that they do not dry out or give me any problems at all. I have never lost a lens while I have been wearing it, which I know often happens to many lens wearers.
About a year ago I switched to a daily brand as I wanted to try them out and see if they were as good as monthlies, but had so many problems with infected eyes that I switched straight back to Frequency 55 and have not changed since.
The only thing I would say about these lenses is that they do degenerate very quickly if you've worn them daily for a month, so if you are not very good at remembering to throw them away at the right time, you may find them hard to insert, and not as comfortable as when you first got them.
However, I would guess that this is a problem encountered with all lenses, and certainly not a flaw in their design, as they are only meant to be worn for a month anyway!
I only ever got into that situation once, I think the manufacturer had stopped making them for a while and it took ages for them to be delivered to me, which meant I had to stick with my month-old lenses for an extra week or two - ouch! However, I have ordered them from the internet a few more times since then and have had no further problems. The lenses are pretty cheap (around £20 for a 3-month supply if you buy via the internet, more from opticians)
Overall, I would thoroughly recommend these lenses as an ideal first brand and also a brand which experienced contact lens wearers can wear for years without any problems.