No, they will not be permanent in the eyes. Usually the eye floaters will appear in the eyes when the eyes become dry or they get the infection from the dust or sands or other irritating materials. You could use the eye drops to release the symptom and have a good rest for the eyes. The eye floaters may disappear about half a month if you do the protection for the eyes.
Eye floaters are usually some tiny spots, specks, flecks and "cobwebs" that drift aimlessly around in your field of vision. And eye floaters itself are harmless and can come and go now and then. And the eye floaters won't affect your vision. And most of people live with eye floaters and ignore them. And they often improve over months to years. But sometimes eye floaters can be a sign of serious condition. If you notice a sudden increase in the number of eye floaters, you'd better see a doctor immediately.
No, it would not be permanent in daily life, but it would be a sign of danger when the eye floaters are increased in sudden. Eye floaters or black spots usually move in and out of vision, changing position with eye movement. In fact, the number of floaters tends to increase with age. It is a common condition for almost every person has a few floaters in the eye, especially when you are looking at bright background like blackboard. It is normally caused by stress, lack of nutrients, fatigue, mood and other factors. It would come and go naturally when you adjust yourself and life style. However, it would be a sign of serious eye disorders, such as retinal detachment, if it is permanent.