Based on experiences of being faced by an on-coming bright light, I wouldn't say I was injured by the light but it certainly increased the potential for an accident and could indirectly cause an injury.

Being faced with an overly bright light has several effects; it forcefully grabs the attention away from what's immediately in front of you, away from closer road obstacles making it more likely that they won't be seen in time to prevent a collision. It makes everything else harder to see in the dark. It makes you squint away from the light source rather than illuminating the light source, so it does not actually help the viewer determine exactly where it is. It's intimidating and causes resentment and bad feeling which is not something roads need any more of.

So... no, ok, perhaps the light itself doesn't cause injury.

Eh.