I'm aware that one of the conditions that can prevent a pass in the medical is a visual field defect. I realise that I am probably barred under this rule, but I thought I'd ask anyone. I have a condition (discovered only recently and by chance) called Optic Nerve Head Drusen (ONHD) in both eyes. I have an extra blind spot in the far periphery of my vision in my right eye caused by the drusens. Just to confirm, this would preclude me from joining, right? If it makes a difference, I was thinking of attempting to join as a warfare officer. The only reason I ask is that the Civil Aviation Authority (CAA) have said they'd grant me a Class 1 medical on the condition that I had regular visual field tests.