There are a number of conditions that could be affecting your dogs eye and ear:
- Ear mites
- Bacterial or viral infection
The list above is just a few conditions, there are many more. The only way to know for sure is to get your dog checked out by a vet.
While there's nothing to suggest you dog is in any danger (especially if he's not showing signs of discomfort), it's always best to err on the side of caution and address issues early on, before they damage your dogs health in a more serious way.