The operation of a medical practice in the field of ophthalmology as well as all advisory and expert activities, rental, purchase and sale of medical equipment and medicines; the company may 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, establish branches and subsidiaries, both in Switzerland and abroad, as well as acquire, hold, manage, administer and dispose of real estate; the company may carry out all commercial, financial, movable or immovable transactions directly or indirectly related to its purpose.