The operation of a medical practice in the field of ophthalmology as well as all consulting and expert activities, rental, purchase and sale of medical equipment and medicines; the company may also grant loans or guarantees to associates or third parties if it serves its interests; it may perform all administrative and financial services for the account of third parties or its own account; the company may invest and take participations in other companies, excluding participations in any company whose purpose is the acquisition of real estate in Switzerland, establish branches and subsidiaries, both in Switzerland and abroad; the company may carry out all commercial, financial or securities transactions directly or indirectly related to its purpose.