Not one of the reported effects were a transient retinal artery occlusion. The vascular closures that have reported with vaccines were primarily venous in the brain. Totally different.While I am pro-Science & not an anti-vaxxer, the vaccines are correlated with problems for some. This is a recent paper on very rare occular problems. Note that having Covid can also cause similar problems. The odds for a different etiology (such as many brought up by other replies) would be more likely, but it is not impossible for a correlation with a vax or covid. There is a need for more research on all the pandemic complexities. Glad the event was temporary, but always good to learn as much as possible. Rare ocular side effects have been noted after COVID-19 vaccination
Finally the report that was quoted pointed out that having these issues with the vaccine may have no association with causality.
One could write the exact article and substitute having Chinese food for vaccination. Everyone of the things mentioned occur all of the time. Not because of eating Chinese food. Or maybe they do?
If there was a sudden unexpected large number of events such as artery occlusion then a association might exist. This has not been seen with vaccines.