Can injuring your temple area affect your vision or brain?

Certainly can be a critical event if you fracture bones over the temple, as risk of injury to middle meningeal artery could result in an epidural hematoma. But a superficial closed head injury in most cases is self-limited, non-progressive, and relatively common and benign. Visual or cognitive issues should be evaluated by a neurologist.

Depending on the extent and severity of injury, it could affect your health. However, sleeping on a small rock will not. For healthy diet: http://www.choosemyplate.gov/., exercise 30 minutes/day, drink enough water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. Get HPV and Covid vaccines. Wish you good health!