Operation of a specialty store for optometry with vision testing (refractions), trade in and distribution and repair of glasses and merchandise as well as fitting and sale of contact lenses and contact lens solutions. May establish branches and subsidiaries domestically and abroad and invest in other companies domestically and abroad, acquire, manage, and sell real estate, and conduct all business that is directly or indirectly related to its purpose. Furthermore, may acquire, encumber, sell, and manage real property domestically and abroad, provide financing for its own or third-party account, and issue guarantees and sureties for subsidiaries and third parties.