I had a traumatic cataract after a car accident. I found an eye surgeon called Will Ayliffe in London who understands aviation and advised that the choice of lens is critical; he used the only one approved by NASA/USAF and the result is remarkable, better than 6/5 vision and no problems with lights at night. Interestingly my AME couldn't even detect I had had cataract surgery as there was no scarring or other evidence.