Just back from my hospital appointment.
I was referred to my doctors and then to the eye infirmary after routine tests at opticians. I felt a bit of a fraud as I felt nothing wrong myself. It turns out that I have ocular hypertension - increased pressure inside the eyeball which could well lead to glaucoma later. My right eye is worse than the left and there is a difference in the optical nerve which needs monitoring. The specialist said I had no need to 'feel a fraud' as these are just the sort of things they like to catch early as they should be able to prevent any further deterioration which will save a lot of hassle later.
It does, however, mean that I am likely to need lifetime treatment (daily drops). As someone who has to a large extent managed without medical intervention up to now this came as quite a shock. Still, if it stops me losing sight I'm up for it.