Afterimages, Ghost Images and Floaters.

I have a lazy left eye & have power in both eyes. I have been having floaters for a long time and suddenly start to notice more floaters. I went for a dilated retina examination last month and my retina was ok. Now from 15 days I am seeing afterimages like from LED Lights, Plaster of Paris, Time on Phone, Circular objects, Windows Grills, Wall Clock.  Another thing happening is I see a light and then I see sideways I saw the afterimage of the LED bulb. To ignore it I have closed my eyes then while my eyes are closed I see multiple afterimages and when I opened my eyes multiple afterimages present on the wall. Sometimes It happens for a good 3-4 mins & I have to leave that room. I am seeing images of objects sometimes on left, sometime in right, sometime in diagonal direction if I see an object. It is not with every object. I went for a dilated retina exam yesterday & doctor said Retina is ok & what you are experiencing is normal. I was not experiencing any such thing until 15 days ago