My story:
At roughly 5 months, (this would have been September 1989) my parents that my eyes would flicker. They took me to the doctors and I was refered to the eye hospital.
Around 3 years later, I was diagnosed with a condition called tunnel vision. As the name suggests, it's just like looking through a tunnel. (so, unlike most people, they can't see things at the side)
1 year later, my diagnosis changed. They were told I have something called Nystagmus. This means that your eyes wobble. If you hold your head at a certain point (a "null point") they stop wobbling. The problem with that is, your balance is affected. My parents were informed I would never be able to drive and there was no cause for it, which is often the case.
Some 10 years later, I started to lose my colour vision, which I ignored. The problem I have is that because of my poor vision, it's sometimes hard to know whether it's my vision in general or there is something else going on.
When I was 18, I really wanted to know if I could drive. Most people with Nystagmus can't drive. According to my consultant, many do just about meet the requirements; but because Nystagmus is affected by tiredness, it's much harder for us to do things such as drive. I also can't do things such as judge distance or speed of cars.
Just before turning 21, I was seen at another hospital. He checked the back of my eyes and noticed something a bit odd. He told me to come back a few months later where he would do a few more tests on me. He did a tunnel vision test and the test for colour vision - the one with dots where you have to find the numbers. I failed!
He told me I have a condition called Optic Atrophy. You have a optic nerve which goes from your brain to your eye and is how you see things. With me, part of mine is missing, hence the colour vision loss, the Nystagmus and the general poor vision.
It's likely I've inherited something from my mother - they discovered at some point her optic nerves are swollen. She has a half sister whose eyes are black. (you have a pupil, the white part and the iris - she has just what looks like a huge pupil)
There's no cure for either condition. There are currently trials going on for things like stem cell treatment and medication. But some of the medication they use, (I've been on it for different reasons) the side effects are horrible.
Because I'm young and my eyes looks completely fine, (although I have to wear tinted glasses due to having such severe photophobia) most people don't believe I have a problem. I was told at college I can't possibly be partially sighted and I'm actually Dyslexic. No-one has ever suggested Dyslexia and there's a lot of evidence suggesting (I can only read 4 to 5 lines of the eyes chart on a good day, corrected) I've got eyesight problems.
The prognosis of Nystagmus is that once you reach 5 or 6, your vision stabilises and once you reach your 40s or 50s, you get the age related problems that everyone else gets. With Optic Atrophy, there's no clear prognosis. I've talked to a woman in America whose son has the condition. His only problem is that he's completely colourblind, meaning he sees everything in grey. I've also talked to a woman who went blind at 11 and do know some people who have gone blind in their late 30s.