What you should watch for is sudden increase of more floaters, flashes of light or loss of peripheral vision. You can search "floaters" also.
JCH MD
I have this too after a blunt eye injury. Not all the time, but the dark spots come and go. I presumed it was iris tissue loss. But not sure.
Tnx for answering. There is one more thing, after blunt trauma My left eye (injured) started to see more floaters than my normal eye. Ophthalmologist used pupil dilating drop and tested my retina, but she didn't find any retina tearing. These floaters are kinda brown colored and longer than normal ones. Its more noticeable when I see clear sky or bright backdound. Is it dangerous for eye? Will these floaters decrease after some time?
This has been discussed at length. Use the search feature and archives and read about "traumatic iridoplegia or tramatic mydriasis. Sometime it gets better some times it doesn't time will tell if at 6 months it's still bigger its likely permanent.
JCH MD