International transport [air, ship, road]
National/local transportation [air, road, train, water]
National depots/ware houses
National regulations
Individual distributors/vendors [self-mobile, stationary, NGOs, Assoc, students, govt, commercial units etc]
Methods of distribution [face to face, postage, couriers, etc]
1 International price of eye wear
2 Distribution of eye wear
3 Cultural issues
4 Protocols
5. Patients affordability
6 access by patients
7 access to patients
8 maintenance and continuous supply