The correct answer is the first option - occipital lobe.
The occipital lobe is a part of your brain which is governs your sight and all your visual activities. It got its name from Latin, because ob means behind, and caput means head, so this lobe is located in the back of your brain.
1. What it will do to help
2. Possible side-effects
3. How long this person will be taking it.
you probably just need sleep