This web page has been designed to publicize and enable access to the public to the information pertaining to events related to the WORLD BLINDNESS SUMMIT MADRID 2020, whose Organizing Committee is led by the NATIONAL ORGANIZATION OF SPANISH BLIND PEOPLE (ONCE ), Tax Identification Number Q-2866004-A, telephone number +34 915890667 (Administrative Contact ES-NIC), fax number +34 915899020, with registered office at Calle José Ortega y Gasset, 18, 28006 Madrid, Spain. Its State Regulatory Standards are defined in “Royal Decree 358/1991, of March 15, which modifies the National Organization of Spanish Blind People”, modified by “the Royal Decrees 1200/1999, of July 9, and 1359/2005 of November 18”. (information offered in compliance with article 10 of Law 34/2002, of July 11, Information Society and Electronic Commerce Services). It also allows access to other information, products and services of entities other than ONCE, as well as those that become accessible through links and existing connections. ONCE reserves the right to modify this policy at its discretion.


All the contents provided on this website have been prepared with information from both internal sources of ONCE, as well as from sources external to the Organization itself, which is why the ONCE is not responsible for the possible lack of updating or inaccuracy of the information pertaining to the aforementioned external sources, and is liable solely for those contents originating directly from their internal sources and duly identified as falling under its Copyright. Therefore, before making any decision or taking any action, ONCE recommends that the User check information received from another source.

This website provides information concerning services intended for knowledge that shall be subject to the terms and conditions expressly detailed at any time and accessible from this website, and which shall be subject to the different applicable legal provisions.


Both the access to this website, and the use that may be made of the information and contents included in it, shall be the sole responsibility of the person who undertakes it.

The conditions of access to this Website shall be subject to current legal provisions and the principles of good faith and lawful use by the user thereof, any type of action to the detriment of the ONCE or third parties being prohibited in general.

The use of this website for illegal or unauthorized purposes shall be considered strictly prohibited.


ONCE is not liable under any circumstances for any type of damage that users may cause to this website, or any other, through the illegal or improper use thereof, or of the contents and information accessible or facilitated through it.


ONCE reserves the right to suspend access to its Website page, without prior notice, in a discretionary and temporary manner, for technical or any other reasons, and may also unilaterally modify both the access conditions and all or part of the contents included in it.


The links in this area will allow you to leave the ONCE site.

The linked sites are not controlled by ONCE and ONCE is not responsible for the contents of any linked site or any link that is in any linked site, or any change or update of such sites. ONCE is not responsible for acts of webcasting or any other form of transmission made from any linked site. ONCE is only providing these links to you for your convenience, and the inclusion of any link does not imply the approval of the site by ONCE.

ONCE hereby informs you that the function of the links or that appear on its pages is exclusively to inform the user about the existence of other sources of information on the subject on the Internet, where you can expand the information offered on this website. These links do not suppose a suggestion, invitation or recommendation to visit destination sites and for that reason, ONCE shall not be responsible for the result obtained through these links.


For any issue at stake or that concerns the ONCE web page, Spanish legislation shall apply and the Courts and Tribunals of Madrid (Spain) be competent for the resolution of all the conflicts arising from or related to the use of this Website page,


By virtue of the provisions of Royal Legislative Decree 1/1996, of April 12, which approves the Revised Text of the Intellectual Property Law, all rights over the documents hosted on this Website are the property of the National Organization of Spanish Blind Persons (ONCE), its total or partial use being permitted for teaching or research purposes, provided that the source, authorship and ownership of ONCE is expressly indicated on such documents.

Access to the ONCE website implies acceptance of all previously stipulated conditions.