Diabetic Retinopathy. Diabetic retinopathy is a complication of diabetes that weakens the blood vessels that supply nourishment to the retina (the light-sensitive lining in the back of the eye where vision is focused). These weak vessels can leak, swell or develop thin branches, causing a loss of vision.
A purchasing cooperative is a type of cooperative arrangement, often among businesses, to agree to aggregate demand to get lower prices from selected suppliers. Retailers' cooperatives are a form of purchasing cooperative. It is often used by government agencies to reduce costs of procurement. Purchasing Cooperatives are used most frequently by governmental entities, since they are required to follow laws requiring competitive bidding above certain thresholds.
A state-run enterprise needs to be distinguished from an ordinary limited liability corporation owned by the state. For example, in Finland, state-run enterprises (liikelaitos) are governed by a separate act. state-run enterprise is technically not always a corporation, it might also be a separate state entity, or simply a governmental agency acting as an enterprise, perhaps having its own budget.