Is vision impairment a common symptom with methylprednisolone?

Rare: This is a good anti-inflammatory and in fact is used to treat some causes of visual dysfunction. Rarely there can be emboli from the injection vessel which could lodge in the eye vessels and damage the vision. But this is very rare.

Yes it can: Yes it can occur by a variety of means such as causing your blood sugar to increase and cause cataracts to grow for example. Talk to your doctor about what is going on.