Hi l had cataract surgery a year ago with vivity lens and was a success. my main aim from the surgery was to have excellent distance vision and not need glasses , which l now have .l have 20/20 distance vision and only need glasses for close up reading, My surgeon says l have PCO forming in Both eyes and will need YAG Laser Capsulotomy within a year , l was speaking to my optopmerist and he said something that worried me, he said in about 20% of people who have YAG Laser Capsulotomy the laser hits the lens implant and slighly moves it which changes the power of the lens . My fear is when l have the YAG Laser Capsulotomy the laser might move my lens implant and l might go from not needing glasses for distance to needing to wear glasses for distance. What are the odds of risk of that happening