Hi Wens, it didnt affect my eyes at all. A lot of people say if you have graves disease and already have issues with your eyes it can make it worse having RAI, I would discuss this with your endocrineologist. they should be experienced enough to give you an idea whether you will be affected. I was lucky with graves and didn't get the bulging eyes or other problems, the only eye issue I have is I get very watery eyes.
I know its easy for me to say as I don't have eye issues but even if the endo had told me I would end up with severe eye problems I expect I still would have had the RAI.
You have to weigh up the risks and benefits to you personally, whether what you are dealing with now is worse than what would come next.
Personally I trusted my endo, he was very experienced and I assumed he knew best, it was nearly 7 years ago I had mine now and I hadn't discovered any of these forums, I didn't research it much.
When I was overacitive it was just unbearable and I would have done anything to stop it. I had urticaria too, I still have occasionally now but far far less.
Its a hard choice but for me I felt it was my only choice, I didn't want surgery. It so hard to explain everything you go through when you are hyper, its like your whole body is on high alert and you can never relax.
I wouldn't like to make you believe everything has been a breeze since, I have had some tough times being hypo, months were I feel I am wading through mud, the tiredness, brainfog etc.
I can honestly say I find it far easier to cope with hypo even on my worst days than I did hyper.
Hopefully others will share some experiences with you, they could be totally different to mine.