Provision of medical services, in particular in the field of ophthalmology. Operation of an ophthalmologist's practice and provision of the infrastructure required for the operation of ophthalmologist's practices and provision of related services. May establish branches and subsidiaries, participate in and acquire other companies. May acquire, encumber, sell and manage real estate. May also provide financing for its own account or for the account of third parties, as well as guarantees and sureties for subsidiaries and third parties.