Thank you everyone for your advice. So I went today for another eye test at Boots, the optician was very good and asked me a series of questions and was very thorough. I told him what opthalmologist had previously said and I wanted him to check everything else out, in case there was another issue. He stated what I was saying was consistant with cataracts. And couldn't find any other abnormality in me eyes. I told him my vision improves 50 to 60% the very moment I step inside. So outside I was really struggling to see, next minute walked into Boots and everything seemed sharp and bright. I walk out agsin and its all blurry. The more natural light there is ie sun, white clouds (reflecting light) rain, wet floors, then the less I see. But agsin when he looked into my eyes he said he could see why the other opthalmologist at the nhs don't want to operate as the cataracts are small. But he acknowledged my issues and said he would refer me on, my prescription has changed 3 times in last 18 months and its actually slightly better than it was, and my left eye (where the cataracts are worse) has now gone from - 3.0 to - 2.75, but I see less (?) Im practically blind in the sun and need help. Thank you John for the RNIB HELPLINE number, I will ring them on Monday. Once agsin thank you to every one for their kind words and advice.