I had Cataract Surgery two days ago. Everything went well and I can see very well out of the operated eye. One problem I have noted is that the pupil remains extremely closed, and I have very little vision in low light. (Is there a better term than "undilated"?) At a follow up visit to the Doctor, I asked him about it and his comment was "they give you some medicine to close the pupil up after surgery; it probably hasn't worn off yet". OK, it's now 48 hours after surgery and that pupil is still very tiny. I will be calling my doctor's office later, but I would like some independent advice: "How long should I expect this to last? Is this at all a common occurrence?" (I haven't seen it described in any of my readings on cataract surgery). I'm also anxious to determine what my final visual acuity will be, and with my pupil acting like a pin-hole, I suspect what I'm seeing now may be better than what I'll finally be seeing. Rich