As I have aged, I've had skin in various areas of my body improve and look, feel and respond in a manner to skin that's not affected by ichthyosis.
For me also these areas are most noticeable just after a bath. That time period is gradually becoming longer as I age.
Many years ago (probably at least 10) I spoke with a man whose father had Lamellar Icthyosis. The father died in his late 70s. According to the man's son, by the time his dad reached middle age, his skin looked very good, almost to the point that unless he was having a really bad day, he didn't look like he had ichthyosis.
At last year's FIRST conferece, there were a fair number of folks with Lamellar or CIE that were anywhere between 50-80 years of age. Some of them really didn't look like they had ichthyosis. They still had to moisturize their skin, but there was no visible peeling or redness. The only thing that was really different looking is that they didn't have a lot of wrinkles and looked younger than they actually were. I think we have much to look forward to as we get older.
I also think the improvement is partially due to people most likely finding improved methods for caring for their skin, and finding and maintaining a routine that works very well for them. It might also be because as people age, they learn a bit more patience (hopefully, at least) and don't get upset as easily. I for one know that the less stressed I am, the better my skin is.
I am female, and was born in 1972 with Lamellar Ichthyosis.