If the Dr was able to SEE such a thing, it seems to imply...maybe it isn't so 'rare'..?
'Eye-related side effects have been reported after the COVID-19 vaccination. But these effects are very rare.'
https://www.healthline.com/health/eye-health/eye-issues-after-covid-vaccine
COVID-19 Vaccine and Your Eyes
Eye-related side effects have been reported after the COVID-19 vaccination. However, compared to the number of people who’ve received a COVID-19 vaccine, these effects are very rare. The eye effects associated with COVID-19 vaccines are believed to be due to the body’s immune response to the vaccine..
https://www.healthline.com/health/eye-health/eye-issues-after-covid-vaccine