@annie25 welcome to the forum. In 2007 I was diagnosed with anterior uveitis and after a year had a diabetes test as they can be linked but I was not diabetic. In 2011 I ignored obvious signs of a flare and was shocked when I went to be told I had amacular oedema and I had 6 weeks of steroids. In 2014 my doctor checked for diabetes and I was 40 [ wasn't told and was never tested again] I asked for a test in June and was 69. I had had a flare of uveitis previous year and suspect i may have had diabetes then but didn't have photos taken.
In October I had a cataract op which stirred up the uveitis and I have a macular oedema again.Just a small one. I'm on eye drops and see consultant later this month with another cataract op in March.
Diabetes is usually diagnosed with a blood test called hba1c. This measures average blood glucose over 3 months. 48 or over is diabetic but they may do a second test to confirm. My second test was 64. I had changed my eating habits reducing carbs. I went on medication a month later and my reading at the moment is 44
Cut out or reduce anymore added sugar in drinks or on cereal. You could use sweetners but not my choice. Cut back or out cakes and pastry. Carbohydrates convert to sugar. Unfortunately our diet tends to add items to fill eg potato, pasta, rice, bread. If you have fat round your middle it is a good idea to lose it. When I first started reducing carbs and sweet things I was losing 2 lbs a week. Cut back or out tropical fruit.
Have a good look at the Diabetes UK site.
When I had to take steroids for a fortnight during cataract op I did have a finger prick that was 13 but pre meals you would expect it to be between 4 and 7.
I think the eye department have done you a favour. I feel let down that my surgery weren't testing me and that noone ever suggested I lose weight ( yes I knew I should) lower carb has been a revelation. I'm now 2 stone lighter and having not tried over last month I'm going to try more.
This GP site is very good. Under weight it has links to Freshwell Moseley and Caldesi
newforestpcn.co.uk
Finally I have learned from the site that changing your diet too drastically is a shock for the body and particularly the eyesight so do it steadily.
I am newish here but will try and answer any questions. If I cannot help there are other more experienced helpful members.