Cats are irritating things. My Mumsy had her cats removed in 15 minutes after putting the surgery off for a few years. She's 94. Wore a patch for one week with frequent eye drops and after 3 weeks, vision as good as new (!). Recently went back for her other eye, and now that too, is good as new. We've come a long way in fixing this quickly, effectivelly and painlessly.
I don't have cats but I have normal age-related vision deterioration and get by (adequately!) with 1.5D magnifiers, even though an optometrist has measured my specs needs at +2.25D for detail work. But