My maternal uncle was able, in his 90s, to read pages from schoolbooks which he could see in his mind's eye. He had a photographic memory.
Some people, though, have little or no ability to visualise things ie they have no visual memory. I am one of those people. If, for example, I am trying to compare two things (perhaps pictures or sets of numbers or whatever) even if they are side by side I have to do it tiny bit by tiny bit looking from one to the other constantly. If there are seven individually distinctive skiffs sailing in the harbour, the second I look away from them I have absolutely no idea what order they are in unless I've managed to commit that to words and can remember the words. I have pictures on my walls that I have gazed at for hours but could still not describe them to you in anything but the most general of terms.
Those examples are, of course, very simple and only a small part of what it's like not to have visual memory and it is only within the last decade that I've become aware that, apparently, relatively few people have this affliction
If you are curious as to your ability to visualise things then close your eyes and imagine walking
along a sandy beach and then gazing over the horizon as the sun rises.
How clear is the image that springs to mind?
Of course, every police officer and defence lawyer will tell you how poor people's visual memory is as evidenced when it comes to describing an incident and those participating, in the way the police would require of a witness.
I know someone with prosopagnosia, also called face blindness, which is a cognitive disorder of face perception in which the ability to recognize familiar faces, including one's own face (self-recognition), is impaired, while other aspects of visual processing (e.g., object discrimination) and intellectual functioning (e.g., decision-making) remain intact. Apparently it is a separate thing to lack of visual memory.
How alone am I in my blogworld?