I have eye doctor appointments annually and have been since the age of 40 at least. I get looked at carefully for glaucoma each time too. The best thing is to get checked out early in life, then your doctor will develop history of your progress over time. Each new year, the eye optic nerve can possibly change, it'll either get worse, remain the same or possibly improve, it all depends on many, many different factors.
I'm currently high risk for glaucoma, and already have signs of it, but the nerve has remained the same the last two years, not getting any worse, which is a very good thing.
There are so many things that can effect your eyes. Please learn what they are before it's too late, especially when you get into your 30s & 40s. Don't wait, get checked out by a good reputable ophthalmologist so they can start developing a history of your eyes as you age.
This is my best recommendation for all you young folks cause goin blind absolutely sucks!
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A little back story/my history as to why I responded.
Back in my 30's I had a severe case of aggressive melanoma, which caused for a prompt unorthodox surgery to my face, specifically to my left eye area. Part of my recovery process was to have specialists look at my eyes for years afterwards, to see if the cancer had possibly returned in the same area or not, and it has not.
There were following surgeries to reconstruct my upper eye lid and eye socket. I had one of the best, if not the best in the country do the work, now since retired. Love the man!
Anyhow, it was that back then in my life that in a way was also a blessing in disguise because, through the recovery process, I found out I needed glasses, and that eye had a larger than normal optic nerve. My doctors have been monitoring it ever since.
Throughout the years, I still get checked out semi-annually for cancer, and once a year for my eyes, which are hanging in there for me still, but I work at it to insure as much life out of them as possibly.
I hope this makes a little more sense as to why I recommend people to get checked out early and have a good history going with your doctor. Glaucoma is a slow progressive disease typically, and it can be treated if caught early enough.