Dynamics

Labor cost

Material cost

Country of production [laws, other relevant materials/industries]

Quantity produce

Competition

Freight

Custom duties

Currencies and exchange rates

Sponsorship

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

9. sponsorship

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