Go through these in order and stop at the first one that applies. If you are reading this for someone else, answer for them.
Get immediate medical help after an eye injection if you develop:
Sudden severe vision loss, a curtain over the vision, or flashes with many new floaters can indicate another serious eye problem and needs emergency assessment.
Call emergency services if visual change occurs with facial weakness, arm weakness, difficulty speaking, severe imbalance, or another possible stroke symptom.
Seek urgent eye care if you develop new distortion, central blurring, missing areas, or a dark patch in either eye.
This is especially important if you already have dry AMD or wet AMD in the other eye.
Do not wait for a routine appointment.
Routine follow-up is appropriate for stable symptoms, planned OCT monitoring, questions about visual aids, and gradual changes in how you manage daily activities.
Every sign above is quoted from the sofidex article on Wet AMD. If you are not sure, err upward — it is always reasonable to be checked.