You should see a strabismus specialist to determine the problems. Thyroid can also cause a strabismus.
I am a 15 yo male, perfectly healthy. Since I was 10 i am experiencing floaters. I have a medium size C one, that can change to a S, J, O, 9 or a 6. When i read on the internet it states my floater matches a Weiss ring floater that is caused by a PVD(my floaters has strands).
I visited 2 different Ophtalmologist and both said I dont have a PVD or any other sort of retinal disease. It occured once at my balcony in winter of 2008. I was scared to death. They chacked the back of my eye with a microscope and an ophtalmoscope and nothing was found, actually he said that I have a very healthy retina.
If it is a PVD, why would it occur. I am myopic(verry little) but at that time I had 20/20 vision. I was a swimming champion then