Same here, they reckon the brief test before the yearly retinal screening shows up any change in the prescription, BUT you can claim a free one if you 'believe' there's a change in your sight.@Babyweed . I'm 99% certain that as T1 diabetics we were entitled to one free eye check annually, but on my last visit (Dec 2017 ) I was told it would be biannually due to new NHS guidance.