Cataracts. Cataract surgery. In 1991 when my ophthalmologist told me I had retinitis pigmentosa, he also said I have cataracts. He said they were a natural part of my eye condition, and that there was no point in having them removed yet, because they would just grow back. “Have them removed in the future, when they start bothering you,” he said. So I waited. Four years ago, at my annual eye appointment, Dr. Lewis told me it was probably a…