What could a painless hard lump on forehead over right eye be?

A painless hard lump on the forehead over the right eye could be a few different things, such as a sebaceous cyst, which is a non-cancerous growth filled with oil and dead skin cells. It might also be a lipoma, a benign fatty tumor that is typically soft but can feel firm. Other possibilities include a benign bone growth or an osteoma. However, it's important to consult a healthcare professional for an accurate diagnosis and appropriate management.