right eye lost vision; visual disturbance; migraine headache; He saw little pyramids connected together, then it had a thing with a pyramid shaped head at the edge of it. Stacked on top, was like a snake looking thing.; This is a spontaneous report from a contactable consumer (patient). A 60-years-old male patient received bnt162b2 (PFIZER-BIONTECH COVID-19 mRNA VACCINE; solution for injection, Batch/Lot number: FA6780) via an unspecified route of administration in right arm on 09Jul2021 at 12:30 (age at vaccination 60-years-old) as first dose, single for COVID-19 immunization. Medical history included atopic allergies. Concomitant medication(s) included cetirizine hydrochloride (ZYRTEC) one pill, once a day for atopic allergies (It was working perfect. Patient had been taking for about two years). Prior vaccinations (within 4 weeks) were reported as none. On 15Jul2021, around 00:15 to 00:30, patient started to get a migraine headache. He normally did not get migraines or headaches. His head was still hurting on the right side. The pain started on the right back side of his neck. Then it moved to the cortex of his brain, just on the right side. It spilled into the right side of his brain. After he saw things, then his head was hurting so bad. He could feel the right side of his brain. It got terrible to the point that his right eye lost vision. His vision did not go black, it went white. The weird thing was that he could see two to three feet in front of him. He saw little pyramids connected together, then it had a thing with a pyramid shaped head at the edge of it. He really could see nothing, but it was clear at the same time, and he could still see the light. At first, it got whiter, and then it got black and white. Stacked on top, was like a snake looking thing. It was circling, and then moving back and forth, and then turned into an S. It straightened up and turned its head towards him. Then it started fading away. He had to leave his job because his head was hurting. He felt it on the right side of his brain. He was driving home, and it started happening again. He held his right hand over his right eye, and he could still see it. He knew that it was not an illusion, it was in his head. He was like what the hell was going on. When he got home he drank water and laid down and feel asleep when woke up can still feel pressure in head and the pressure /pain had gone away but if moved head can still feel a little bit in the right side of his brain, feel like it was still there a little. Also stated that he did have topical allergies and they do "explode" from time to time and patient was Zyrtec for that and it had been working and he did have an allergy attack about 3-4 weeks ago with sneezing. He wanted to know if that had something to do with the COVD vaccine. He vividly knew what he saw. The patient did not visit emergency room or physician office. Relevant tests were reported as none. The outcome of the events he saw little pyramids connected together, then it had a thing with a pyramid shaped head at the edge of it. Stacked on top, was like a snake looking thing was recovered on 15Jul2021, migraine headache was not recovered and right eye lost vision, visual disturbance it was unknown.   Follow-up (20Jul2021): Follow-up attempts are completed. No further information is expected.