The thief concentrated twice as hard on the traffic to prevent such terrifying thoughts from fully occupying his mind, he knew full well that he could not permit himself the smallest error, the tiniest distraction. There were always police around and it would only need one of them to stop him, May I see your identity card and driving licence, back to prison, what a hard life. He was most careful to obey the traffic lights, under no circumstances to go when the light was red, to respect the amber light, to wait patiently for the green light to come on. At a certain point, he realised that he had started to look at the lights in a way that was becoming obsessive. He then started to regulate the speed of the car to ensure that he always had a green light before him, even if, in order to ensure this, he had to increase the speed or, on the contrary, to reduce it to the extent of irritating the drivers behind him. In the end, disoriented as he was, tense beyond endurance, he drove the car into a minor road where he knew there were no traffic lights, and parked almost without looking, he was such a good driver. He felt as if his nerves were about to explode, these were the very words that crossed his mind. My nerves are about to explode. It was stifling inside the car. He lowered the windows on either side, but the air outside, if it was moving, did nothing to freshen the atmosphere inside. What am I going to do, he asked himself. The shed where he had to take the car was far away, in a village outside the city, and in his present frame of mind, he would never get there. Either the police will arrest me or, worse still, I'll have an accident, he muttered. It then occurred to him that it would be best to get out of the car for a bit and try to clear his thoughts, Perhaps the fresh air will blow the cobwebs away, just because that poor wretch turned blind is no reason why the same should happen to me, this is not some cold one catches, I'll take a turn round the block and it will pass. He got out and did not bother to lock the car, he would be back in a minute, and walked off. He had gone no more than thirty paces when he went blind.
In the surgery, the last patient to be seen was the goodnatured old man, the one who had spoken so kindly about the poor man who had suddenly turned blind. He was there just to arrange a date for an operation on a cataract that had appeared in his one remaining eye, the black patch was covering a void, and had nothing to do with the matter in hand, These are ailments that come with old age, the doctor had said some time ago, when it matures we shall remove it, then you won't recognise the place you've been living in. When the old man with the black eyepatch left and the nurse said there were no more patients in the waiting-room, the doctor took out the file of the man who had turned up blind, he read it once, twice, reflected for several minutes and finally rang a colleague with whom he held the following conversation: I must tell you, today I dealt with the strangest case, a man who totally lost his sight from one instant to the next, the examination revealed no perceptible lesion or signs of any malformation from birth, he says he sees everything white, a kind of thick, milky whiteness that clings to his eyes, I'm trying to explain as best I can how he described it, yes, of course it's subjective, no, the man is relatively young, thirty-eight years old, have you ever heard of such a case, or read about it, or heard it mentioned, I thought as much, for the moment I cannot think of any solution, to gain time I've recommended some tests, yes, we could examine him together one of these days, after dinner I shall check some books, take another look at the bibliography, perhaps I'll find some clue, yes, I'm familiar with agnosia, it could be psychic blindness, but then it would be the first case with these characteristics, because there is no doubt that the man is really blind, and as we know, agnosia is the inability to recognise familiar objects, because it also occurred to me that this might be a case of amaurosis, but remember what I started to tell you, this blindness is white, precisely the opposite of amaurosis which is total darkness unless there is some form of white amaurosis, a white darkness, as it were, yes, I know, something unheard of, agreed, I'll call him tomorrow, explain that we should like to examine him together. Having ended his conversation, the doctor leaned back in his chair, remained there for a few minutes, then rose to his feet, removed his white coat with slow, weary movements. He went to the bathroom to wash his hands, but this time he did not ask the mirror, metaphysically, What can this be, he had recovered his scientific outlook, the fact that agnosia and amaurosis are identified and defined with great precision in books and in practice, did not preclude the appearance of variations, mutations, if the word is appropriate, and that day seemed to have arrived. There are a thousand reasons why the brain should close up, just this, and nothing else, like a late visitor arriving to find his own door shut. The ophthalmologist was a man with a taste for literature and a flair for coming up with the right quotation.
That evening, after dinner, he told his wife, A strange case turned up at the surgery today, it might be a variant of psychic blindness or amaurosis, but there appears to be no evidence of any such symptoms ever having been established, What are these illnesses, amaurosis and that other thing, his wife asked him. The doctor gave an explanation within the grasp of a layman and capable of satisfying her curiosity, then he went to the bookcase where he kept his medical books, some dating back to his university years, others more recent and some just published which he still had not had time to study. He checked the indexes and methodically began reading everything he could find about agnosia and amaurosis, with the uncomfortable impression of being an intruder in a field beyond his competence, the mysterious terrain of neurosurgery, about which he only had the vaguest notion. Late that night, he laid aside the books he had been studying, rubbed his weary eyes and leaned back in his chair. At that moment the alternative presented itself as clear as could be. If it were a case of agnosia, the patient would now be seeing what he had always seen, that is to say, there would have been no diminution of his visual powers, his brain would simply have been incapable of recognising a chair wherever there happened to be a chair, in other words, he would continue to react correctly to the luminous stimuli leading to the optic nerve, but, to use simple terms within the grasp of the layman, he would have lost the capacity to know what he knew and, moreover, to express it. As for amaurosis, here there was no doubt. For this to be effectively the case, the patient would have to see everything black, if you'll excuse the use of the verb to see, when this was a case of total darkness. The blind man had categorically stated that he could see, if you'll excuse that verb again, a thick, uniform white colour as if he had plunged with open eyes into a milky sea. A white amaurosis, apart from being etymologically a contradiction, would also be a neurological impossibility, since the brain, which would be unable to perceive the images, forms and colours of reality, would likewise be incapable, in a manner of speaking, of being covered in white, a continuous white, like a white painting without tonalities, the colours, forms and images that reality itself might present to someone with normal vision, however difficult it may be to speak, with any accuracy, of normal vision. With the clear conscience of having fetched up in a dead end, the doctor shook his head despondently and looked around him. His wife had already gone off to bed, he vaguely remembered her coming up to him for a moment and kissing him on the head, I'm off to bed, she must have told him, the flat was now silent, books scattered on the table, What's this, he thought to himself, and suddenly he felt afraid, as if he himself were about to turn blind any minute now and he already knew it. He held his breath and waited. Nothing happened. It happened a minute later as he was gathering up the books to return them to the bookshelf. First he perceived that he could no longer see his hands, then he knew he was blind.