a slight change in the eye needs attention so my dear go see a doctor. its not normal. take care
I would not see an optometrist, who is not an M.D., but like to operate above their pay grade. Often their training ends at the community college level. Essentially they sell eyeglasses.
Instead I would visit an opthamologist, a Medical Doctor (M.D.) who specializes in the diseases of the eye.
These spots do not meet the description of floaters, but that does not mean they are not floaters. Floaters tend to drift, but they are not usually white or black spots. It appears you have debri in the eye. What kind of debri? I have had debri from remains of a dead parasite drift around in one eye, picked up in Asia. Little pieces. So it's best to get things checked out with a thorough examination of your eye.
Floaters are more likely to develop as we age and are more common in people who are very nearsighted, have diabetes, or who have had a cataract operation. Often times they are harmless. There are other, more serious causes of floaters, including infection, inflammation (uveitis), hemorrhaging, retinal tears, and injury to the eye.
My advice is to see an optometrist (eye doctor) to be on the safe side. Explain your symptoms to this doctor and let him give you a proper diagnosis. Goodluck