drooping eye lid in the left eye; a little double vision sometimes; This is a spontaneous report from a contactable consumer (patient). A 77-year-old male patient received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Formulation: Solution for injection, Lot Number: EL92104) via an unspecified route of administration in arm on 05Feb2021 at 11:00 (at the age of 77-year-old) as dose 2, single for COVID-19 immunization. Medical history included myasthenia gravis from 1992 and ongoing, thymectomy from 1996 to an unknown date and drug hypersensitivity (he's allergic to penicillin, he thinks he got hives, he doesn't know, when he was 10 or 12 years old. He states that's when they told him he had an allergy with the penicillin, and he got red lumps on his legs). The patient's concomitant medications were not reported. The patient previously received BNT162B2 (PFIZER-BIONTECH COVID-19 VACCINE, Lot number: EL92104; Dosage text: injection, unknown dosage, arm) on 15Jan2021 at 11:00 (at the age of 77-year-old) for COVID-19 immunization. The patient did not receive vaccinations within four weeks prior to the first administration date of BNT162B2. The patient reported that 2 or 3 weeks after the vaccination, in Feb2021, he experienced a dropping eyelid in the left eye. He states now the thing that's important in this issue was he has myasthenia gravis, which is considered to be an autoimmune disease. The drooping eyelid might be some effect that the vaccination had on the myasthenia gravis, there might be a connection between those two. He sort of has a little double vision sometimes while watching the television. He stated that could be a characteristic of the myasthenia gravis, but it also could be the vaccination has caused a problem with the myasthenia. The drooping eye lid seems to be a little better, but the double vision was not. The double vision was not there all the time. The drooping eyelid he can't always tell was there, he had to look in the mirror and the reason he started paying attention to it was somebody motioned it to him. They asked what was wrong with his eye and he said nothing. He couldn't really tell without a mirror. Over a period of time, he started seeing drooping eyelid if they look through the side. He noticed that the drooping was usually worse later in the day. For a little double vision, he stated that usually when he was looking straight ahead, it did not seem to be there. He looked to the side or his eyes tire out a little, he tends to see it, the vision was a little off. It was a little worse than it was in the very beginning. He further reported that the first symptoms of the myasthenia were drooping eyelid and double vision which was what has getting now. He stated now whether these have anything to do with each other he did not know. The patient visited physician (ophthalmologist) office due to the drooping eyelid. The patient did not undergo relevant tests. The patient reported that the drooping eye lid and double vision may not be related. Therapeutic measures were taken as a result of drooping eye lid in the left eye. The clinical outcome of drooping eye lid in the left eye was resolving; and double vision was not resolving.