I’m a contact lens wearer. I used to wear Acuvue 2 lenses, which they say to replace every two weeks. This last year, however, I’ve been wearing ‘1-day’ Acuvue lenses, which are a lot cheaper on a per-lens basis. Is there actually any difference between these differently marketed contact lenses? Both do a good job of fixing up my vision, and they look identical. (Thinner plastic on the one days, perhaps?)
If there is a difference, and the two weeks lenses are more durable, is that any reason NOT to wear the ‘1-days’ for longer than that? How long–two days, five days, two weeks? What’s the deal?
I have used contacts for about 6 months. They were Specsavers 1-month lens, but by week 3 they were so thin that wearing them was uncomfortable and I couldn’t see very well. I ended up replacing them every two weeks.
I’ve never used single day lens, but I guess the material won’t last too long. Also my WAG is that the saline solution actually damages them, since they are not supposed to be disinfected.
Anyway, I think contacts are too much hassle. I believe a laser operation is the solution.
This was Johnson & Johnson, the Acuvue Daily lenses, which were identical, even to packaging, with the longer wear version. The only difference was in the prescription, and that alone determined the price. The FCC made them stop. This was years ago (10 years?) when the daily disposables first came out.