I need advice from a person that knows both France (or Europe) and Ethiopia

Hello, I am a Frenchman that will emigrate from France to Ethiopia this summer. I accepted a interesting job offer in Addis-Ababa. I need to prepare myself for a radical and exciting change of life. Excuse my ignorance, but I wonder what is better to do/get in France and bring with me before I leave and what is better to get in Addis-Ababa, where I will settle, in term of price and quality.

What about :

- Prescription glasses ?
- Clothing (I supposed it is cheaper but what about quality?)
- dental care (going to the dentist)
- electronics (computers, phone, etc.)

Sorry for this very boring and down to Earth publication.