My doctor told me I had something in my and he removed. But in reality my eye was bleeding internally for months.
He still referred me to an optometrist and again he said you need new glasses.
Finally the third time I was sent over to an opthalmologist, where he noticed the bleeding and he had to do hot laser to stop it.
It was too late, but better than nothing.
I also found some good information on http://www.sun-protection-and-you.com/macular-degeneration.html .
Get your eyes checked regularly and good luck.