After four years of wearing gas-permeable hard contact lenses, I'm switching back to soft. My hard contacts often go out of place, causing a great deal of irritation. I originally had a number of reasons for wearing hard contacts, but I find that many of them no longer apply:
1. Gas-permeable lenses allow more oxygen and better tear flow to the eye. In college, when my roommates (who wore gas-perms) chopped onions, their eyes would BURN, while I (wearing soft contacts) felt nothing. Scary. Now the technology has improved for soft lenses, even in the last year, to improve oxygenation to the eye.
2. Gas-permeable lenses hold the shape of your cornea to slow down the worsening of your eyesight. Once you reach your mid-twenties, your eyesight tends to stabilize anyway. At my eye exam yesterday, the prescription of my right eye remained the same while my left eye improved by .75 diopters, woohoo! Okay, so that's one argument for hard contacts.
3. Gas-permeable lenses provide crisper, clearer vision. I haven't noticed much difference, and with disposable soft lenses, I get a new pair every two weeks.
4. Maintenance is cheaper and easier with gas-permeable lenses. Now there are many one-step cleaning solutions for both soft and hard lenses.
5. Gas-permeable lenses are more cost-effective. After purchasing two boxes of Acuvue Advanced disposable soft lenses (the ones my optometrist recommended), I get a $50 rebate on my fitting fee.
So, I'll see how I like these soft lenses over the next week or two. My optometrist told me to hold off on buying boxes of lenses since it takes that much time for the cornea to adapt. She also suggested I wear hard lenses once a week to maintain my level of vision, similar to a retainer for teeth. After one day, I already feel the reduction in tear flow. These lenses feel like they are glued to my eyeballs.