###Human: Why am I having double vision even after cataract surgery? ###Assistant: Hi. The ghost images are a normal retinal phenomenon known as after images. You need not worry about it. You can see them clearer after cataract surgery because they are a normal retinal response to any image. The more the contrast, the more the ghost images or after images. The floaters are formed as a natural course of aging of vitreous jelly which fills up our eye. Also, it is better to get your retina examined six monthly or at least yearly to look for any breaks.