Sauber Formula One driver Marcus Ericsson of Sweden rubs his eye during the second practice session of the Australian F1 Grand Prix at the Albert Park circuit in Melbourne March 13, 2015. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT F1)

Keila Gonzalez rubs her eye while holding a missing person poster of her missing mother Marisol Gonzalez, during an International Women's Day rally in Ciudad Juarez March 8, 2015. REUTERS/Jose Luis Gonzalez (MEXICO - Tags: SOCIETY TPX IMAGES OF THE DAY) 

Austrian Social Minister Rudolf Hundstorfer rubs his eye during a news conference on the pension system in Vienna November 26, 2014. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: POLITICS BUSINESS EMPLOYMENT HEADSHOT) 

Austrian Social Minister Rudolf Hundstorfer rubs his eye during a news conference on the pension system in Vienna November 26, 2014. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: POLITICS BUSINESS EMPLOYMENT HEADSHOT) 

Tokyo Stock Exchange (TSE) staff member rubs his eyes as he works at the bourse at TSE in Tokyo October 16, 2014. Japan's Nikkei share average tumbled 2.5 percent to a 4-1/2-month low on Thursday after Wall Street dived on deepening worries about weak global demand, while a stronger yen dragged down exporters such as Toyota Motor Corp. REUTERS/Yuya Shino (JAPAN - Tags: BUSINESS) 

U.S. President Barack Obama chairs the United Nations Security Council summit in New York September 24, 2014. Also present are U.N. Secretary-General Ban Ki-moon (front L), U.S Secretary of State John Kerry (back L), National Security Advisor Susan Rice (back 2nd L, in red), U.S. Ambassador to the UN Samantha Power (2nd R).
REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS) 

U.S. President Barack Obama and U.S Secretary of State John Kerry (back L) rub their eyes as Obama chairs the United Nations Security Council summit in New York September 24, 2014. Also present are U.N. Secretary-General Ban Ki-moon (front L), National Security Advisor Susan Rice (back 2nd L, in red) and U.S. Ambassador to the UN Samantha Power (2nd R).
REUTERS/Kevin Lamarque (UNITED STATES - Tags: POLITICS) 

Kei Nishikori of Japan rubs his eye during the men's singles final match against Marin Cilic of Croatia at the 2014 U.S. Open tennis tournament in New York, September 8, 2014. REUTERS/Adam Hunger (UNITED STATES - Tags: SPORT TENNIS)

A girl rubs her eye beside her father in an internally displaced persons (IDP) camp, that was set up for Nigerians fleeing the violence committed against them by Boko Haram militants, at Wurojuli, Gombe State, September 1, 2014. Islamist Boko Haram insurgents have overrun much of Bama, a northeastern Nigerian town ,after hours of fighting that has killed scores and displaced thousands of residents, several security sources said on September 2. Picture taken September 1, 2014. REUTERS/Samuel Ini (NIGERIA - Tags: POLITICS CIVIL UNREST) 

Doll restorer Kerry Stuart rubs a filling compound into the cracked head of a plastic doll at Sydney's Doll Hospital, July 15, 2014. Opened in 1913, Sydney's Doll Hospital has worked on millions of dolls, teddy bears and other toys. Behind a toy shop on a busy suburban street in Sydney's south, "doll surgeons" transplant fingers, toes and heads, and repair broken eye sockets in dolls who were the victim of a childhood tantrum or sibling rivalry, sometimes decades ago. Picture taken July 15, 2014. REUTERS/Jason Reed (AUSTRALIA - Tags: SOCIETY TPX IMAGES OF THE DAY)

ATTENTION EDITORS: PICTURE 26 OF 32 FOR WIDER IMAGE PACKAGE '101 YEARS MENDING DOLLS, TEDDIES AND HEARTS'. TO FIND ALL IMAGES SEARCH 'DOLLS REED' 

U.S. Secretary of State John Kerry rubs his eyes as he waits for the start of the U.S.-Africa Business Forum in Washington August 5, 2014. The forum is part of the U.S.-Africa Leaders Summit bringing nearly 50 African heads of state together for three days of meetings and events. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS) 

Incoming U.S. House Majority Leader Kevin McCarthy (R-CA) rubs his eyes during a ceremony for Israel's President Shimon Peres to receive the Congressional Gold Medal in the rotunda of the U.S. Capitol in Washington June 26, 2014. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS) 

Brazil's Neymar rubs his eyes after the national anthem at the 2014 World Cup Group A soccer match between Brazil and Mexico at the Castelao arena in Fortaleza June 17, 2014. REUTERS/Marcelo del Pozo (BRAZIL - Tags: SOCCER SPORT WORLD CUP)

Mercedes Formula One driver Nico Rosberg of Germany rubs his eye during the second free practice of the Spanish F1 Grand Prix at the Barcelona-Catalunya Circuit in Montmelo May 9, 2014. REUTERS/Albert Gea (SPAIN - Tags: SPORT MOTORSPORT F1) 

U.S. President Barack Obama rubs his head as he laughs at a joke during the White House Correspondents' Association Dinner in Washington May 3, 2014. REUTERS/Joshua Roberts (UNITED STATES - Tags: POLITICS MEDIA ENTERTAINMENT SOCIETY TPX IMAGES OF THE DAY) 

Pope Francis rubs his eyes as he leads the general audience in Saint Peter's Square at the Vatican April 23, 2014. REUTERS/Tony Gentile (VATICAN - Tags: RELIGION) 

U.S. Secretary of State John Kerry rubs his eye while listening to a question during a news conference at the U.S. Ambassador to France's residence in Paris March 30, 2014. Kerry said late on Sunday he and his Russian counterpart, Sergei Lavrov, discussed suggestions for de-escalating the Ukraine crisis during four hours of talks in Paris. REUTERS/Jacquelyn Martin/Pool (FRANCE - Tags: POLITICS CIVIL UNREST TPX IMAGES OF THE DAY) 

Italy's Finance Minister Pier Carlo Padoan rubs his eyes during a news conference at Chigi palace in Rome March 12, 2014. Italy's lower house of parliament approved a new electoral law on Wednesday aimed at ensuring more stable governments, giving a boost to Prime Minister Matteo Renzi as he prepares to unveil a package of tax cuts and economic reforms. The reform, aimed at preventing a repeat of last year's deadlocked election by favouring bigger parties and stronger coalitions, must now go to the Senate, where it is likely to face additional amendments from Renzi's own centre-left Democratic Party (PD). REUTERS/Remo Casilli (ITALY - Tags: POLITICS BUSINESS) 

Second place finisher Aliy Zirkle rubs her eyes after arriving at the finish line during the Iditarod dog sled race in Nome, Alaska, March 11, 2014. Veteran musher Dallas Seavey early Tuesday morning won his second Iditarod sled-dog race in three years, unseating his father, Mitch, as defending champion while breaking the race's three-year-old record.The nearly 1,000-mile (1,600-km) Iditarod Trail Sled Dog Race commemorates a 1925 rescue mission that carried diphtheria serum by sled-dog relay to the coastal community of Nome, which remains the final destination in this 42nd edition of the event. REUTERS/Nathaniel Wilder (UNITED STATES - Tags: SPORT ANIMALS SOCIETY)

U.S. Secretary of State John Kerry rubs his eyes as he attends the Conference on International Support to Libya in Rome March 6, 2014. REUTERS/Alessandro Bianchi (ITALY - Tags: POLITICS TPX IMAGES OF THE DAY) 

Leonarda Dibrani rubs her eye while reading from a mobile phone after a French court ruled that her family's explusion from France was legal, in Mitrovica January 28, 2014. Dibrani was taken off a school bus by police in France last October and deported to Kosovo. REUTERS/Hazir Reka (KOSOVO - Tags: POLITICS EDUCATION SOCIETY IMMIGRATION) 

Sevilla soccer club President Jose Maria del Nido rubs his eye during a news conference where he announced his resignation after being sentenced to seven years in prison for embezzlement and breaching the course of justice, in Seville December 9, 2013. Del Nido was convicted of charging a local authority for millions of euros for work that was either unnecessary or never even carried out during his time as an attorney there from 1999-2003. REUTERS/Javier Diaz (SPAIN - Tags: SPORT SOCCER CRIME LAW) 

Manchester City's Samir Nasri rubs his eye as he arrives for a news conference at the Etihad Stadium in Manchester, northern England November 26, 2013. City are set to play Czech Republic side Viktoria Plzen in the Champions League soccer match on Wednesday. REUTERS/Phil Noble (BRITAIN - Tags: SPORT SOCCER) 

Olympique Marseille's sporting director Jose Anigo (R) rubs his eye as he waits for the start of their Champions League soccer match against Napoli at San Paolo stadium in Naples November 6, 2013. REUTERS/Giampiero Sposito (ITALY - Tags: SPORT SOCCER) 

U.S. President Barack Obama rubs his eyes during a session with reporters after meeting with Iraqi Prime Minister Nuri al-Maliki in the Oval Office at the White House in Washington, November 1, 2013. Obama told visiting Al-Maliki on Friday that the United States wants an inclusive, prosperous Iraq free of violence. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS) 

U.S. Representative Bill Cassidy (R-LA) (C) rubs his eyes as his colleagues question Health and Human Services (HHS) Secretary Kathleen Sebelius during a House Energy and Commerce Committee hearing about issues and complications with the Affordable Care Act enrollment website, on Capitol Hill in Washington, October 30, 2013. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS HEALTH TPX IMAGES OF THE DAY) 

Yamaha MotoGP rider Jorge Lorenzo of Spain (L) rubs his eye as his teammate Valentino Rossi of Italy watches during the post-qualifying news conference ahead of the Australian Motorcycle Grand Prix, at Phillip Island Circuit October 19, 2013. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT) 

U.S. Senate Majority Leader Harry Reid (D-NV) rubs his eyes during a news conference after a bipartisan passage of a budget and debt legislation at the U.S. Capitol in Washington, October 16, 2013. The U.S. Senate approved a deal on Wednesday to end a political crisis that partially shut down the federal government and brought the world's biggest economy to the edge of a debt default that could have threatened financial calamity. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS) 

U.S. Senate Majority Leader Harry Reid (D-NV) rubs his eyes during a news conference after a bipartisan passage of a budget and debt legislation at the U.S. Capitol in Washington, October 16, 2013. The U.S. Senate approved a deal on Wednesday to end a political crisis that partially shut down the federal government and brought the world's biggest economy to the edge of a debt default that could have threatened financial calamity. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS) 

U.S. Senate Majority Leader Harry Reid (D-NV) (L) rubs his eyes as he and Senator Charles Schumer (D-NY) address reporters at a news conference at the U.S. Capitol in Washington, October 2, 2013. U.S. President Barack Obama scrapped part of a long-planned trip to Asia and planned to meet with congressional leaders on Wednesday as a U.S. government shutdown entered a second day with no end in sight. REUTERS/Jonathan Ernst (UNITED STATES - Tags: POLITICS BUSINESS) 

Iran's President Hassan Rohani rubs his eye as he speaks during an event hosted by the Council on Foreign Relations and the Asia Society in New York September 26, 2013. REUTERS/Keith Bedford (UNITED STATES - Tags: POLITICS) 

Britain's Prince Harry rubs his eye after a cold chamber training exercise with the Walking with the Wounded South Pole Allied Challenge 2013 British team at Nuneaton in central England September 17, 2013. Three teams of wounded service personnel from Britain, The United States of America and the Commonwealth will race 335km to the South Pole in November. REUTERS/Darren Staples (BRITAIN - Tags: MILITARY SOCIETY ROYALS) 

Belgium's King Philippe rubs his eye during the 'Hanswijkcavalcade' and 'Ommegang' historical parades in Mechelen September 1, 2013. REUTERS/Laurent Dubrule (BELGIUM - Tags: ROYALS ENTERTAINMENT) 

Red Bull Formula One driver Mark Webber of Australia rubs his eye as he sits in his car during the first practice session of the Hungarian F1 Grand Prix at the Hungaroring circuit in Mogyorod, near Budapest July 26, 2013. REUTERS/Laszlo Balogh (HUNGARY - Tags: SPORT MOTORSPORT F1)

Actor Channing Tatum rubs his eyes while speaking to a reporter at the premiere of his new film "White House Down" in Washington June 21, 2013. REUTERS/Jonathan Ernst (UNITED STATES - Tags: ENTERTAINMENT) 

Stanislas Wawrinka of Switzerland rubs his eye during his men's singles quarter-final match against Rafael Nadal of Spain at the French Open tennis tournament at the Roland Garros stadium in Paris June 5, 2013. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS)

Paula Ormaechea of Argentina rubs her eyes during her women's singles match against Bethanie Mattek-Sands of the U.S. at the French Open tennis tournament at the Roland Garros stadium in Paris June 1, 2013. REUTERS/Vincent Kessler (FRANCE - Tags: SPORT TENNIS)

Sri Lanka's President Mahinda Rajapaksa rubs his eye as he attends a signing ceremony with China's President Xi Jinping (not pictured) at the Great Hall of the People in Beijing, May 28, 2013. REUTERS/Kim Kyung-Hoon (CHINA - Tags: POLITICS) 

Vesna Dolonc of Serbia rubs her eye during her women's singles match against Zheng Jie of China at the French Open tennis tournament at the Roland Garros stadium in Paris May 27, 2013. REUTERS/Gonzalo Fuentes (FRANCE - Tags: SPORT TENNIS)

ZTE Chairman Hou Weigui rubs his eye during an interview in Beijing April 18, 2013. ZTE Corp, China's second-largest telecoms equipment maker, has essentially stopped doing business in Iran after a U.S. investigation into alleged sales of embargoed equipment, Hou told Reuters on Thursday. To match Interview ZTE-IRAN/ REUTERS/Barry Huang (CHINA - Tags: BUSINESS POLITICS) 

U.S. Secretary of State John Kerry rubs his eyes as he starts a news conference in Beijing April 13, 2013. The U.S. and China agreed on Saturday to make a joint effort to push for the peaceful denuclearization of the Korean peninsula, following weeks of bellicose rhetoric from North Korea and rising tensions in northeast Asia. REUTERS/Paul J. Richards/Pool (CHINA - Tags: POLITICS MILITARY) 

A protester rubs her eye before being arrested during a Chicago Teachers Union protest, in front of city hall in Chicago March 27, 2013. Chicago plans to close 54 schools and 61 school buildings by the beginning of the next academic year in the country's third-largest public school district. If the plan, which requires approval by the school board in May, is carried out, it will be the biggest mass closing by a school district in U.S. history. REUTERS/John Gress (UNITED STATES - Tags: EDUCATION POLITICS SOCIETY CIVIL UNREST) 

Willibald Cernko, CEO of UniCredit's Bank Austria unit, rubs his right eye during the bank's annual news conference in Vienna March 18, 2013. Bank Austria, emerging Europe's leading lender, aims to cut its exposure to risk after weak economies in the region triggered one-off charges that dented 2012 results, it said on Monday. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: BUSINESS) 

Red Bull Formula One driver Mark Webber of Australia rubs his eyes during the official news conference at Albert Park circuit in Melbourne March 14, 2013, ahead of the Australian F1 Grand Prix. REUTERS/Brandon Malone (AUSTRALIA - Tags: SPORT MOTORSPORT F1) 

A woman rubs a candle that has been blessed by a priest over the eyes of a relative during a mass at San Hipolito church in Mexico City February 28, 2013. Bells were rung in different churches as Pope Benedict XVI ended his difficult reign on Thursday pledging unconditional obedience to whoever succeeds him to guide the Roman Catholic Church at one of the most crisis-ridden periods in its 2,000-year history. The congregation believe that the blessed candle will impart protection or healing. REUTERS/Edgard Garrido (MEXICO - Tags: RELIGION SOCIETY) 

Italy's former Prime Minister Silvio Berlusconi rubs his eyes as he appears as a guest on the RAI television show Porta a Porta (Door to Door) in Rome February 20, 2013. REUTERS/Remo Casilli (ITALY - Tags: POLITICS MEDIA) 

U.S. President Barack Obama rubs his eye while next to Irene Inouye, widow of the late U.S. Senator Daniel Inouye, at the memorial service for the late senator at the National Memorial Cemetery of the Pacific in Honolulu, Hawaii, December 23, 2012. REUTERS/Larry Downing (UNITED STATES - Tags: POLITICS) 

Real Madrid's goalkeeper Iker Casillas (R) rubs his eye as he sits on the bench with his teammates at the beginning of their Spanish First Division soccer match against Malaga at La Rosaleda stadium in Malaga, southern Spain December 22, 2012. REUTERS/Jon Nazca (SPAIN - Tags: SPORT SOCCER) 

A foreign student member of the Young Pioneers rubs his eyes during the weekly flag-raising ceremony at the East Experimental School in Shanghai November 5, 2012. Created in 1949, the Young Pioneers movement is considered a seedbed for future members of the Chinese Communist Party, and consists of children between the ages of six and 14. The ruling Communist Party is trying to pull off a smooth leadership transition this month, against a backdrop of purges, plots and prison sentences. Just weeks away from a once-in-a-decade succession, the full make-up of China's next leadership and its agenda are unknown and still being negotiated in secret, in contrast to the very public leadership battle underway in the United States. REUTERS/Carlos Barria (CHINA 

Judge Jose Antonio Dias Toffoli (L) rubs his eye during the "mensalao" trial at the Supreme Court in Brasilia October 3, 2012, seven years after the corruption scandal rattled the government of former President Luiz Inacio Lula da Silva. The rapporteur of the case, Joaquim Barbosa, is expected to convict Jose Dirceu, Lula da Silva's chief of staff, and the highest profile figure in the landmark case. REUTERS/Ueslei Marcelino (BRAZIL - Tags: POLITICS CRIME LAW) 

An NFL referee rubs his eyes before the Cleveland Browns play the Baltimore Ravens during their NFL football game in Baltimore, Maryland, September 27, 2012. REUTERS/Patrick Smith (UNITED STATES - Tags: SPORT FOOTBALL) 

A National Football League official rubs his eyes prior to NFL football game between the Baltimore Ravens and the Cleveland Browns in Baltimore, Maryland September 27, 2012. Officials returned to work at the first game since a contract agreement was reached with the league late Wednesday, ending a dispute that had forced replacements to work the entire preseason and the first three weeks of the regular season. REUTERS/Patrick Smith (UNITED STATES - Tags: SPORT FOOTBALL)

Actor Bradley Cooper rubs his eyes at a news conference to promote the film "Silver Linings Playbook" during the 37th Toronto International Film Festival, September 9, 2012. REUTERS/Fred Thornhill (CANADA - Tags: ENTERTAINMENT) 

Raiffeisen Bank International CEO Herbert Stepic rubs his eyes during a news conference in Vienna August 29, 2012. The Austrian group has met market expectations for quarterly profit, which more than halved as provisions for bad loans rose and net interest income fell. REUTERS/Heinz-Peter Bader (AUSTRIA - Tags: BUSINESS) 

Philipp Boy of Germany rubs his eye at the men's gymnastics qualification in the North Greenwich Arena during the London 2012 Olympic Games July 28, 2012. REUTERS/Dylan Martinez (BRITAIN - Tags: SPORT OLYMPICS SPORT GYMNASTICS)

Belgium's Crown Prince Philippe (R) rubs his eyes beside Princesse Mathilde as they attend the inauguration of the official Belgian Olympic Committee headquarters ahead of the London 2012 Olympic Games in central London July 27, 2012. REUTERS/Luke MacGregor (BRITAIN - Tags: SPORT OLYMPICS ROYALS ENTERTAINMENT CYCLING) 

A man rubs his eyes as he rests at the Zocalo square in Mexico City July 24, 2012. REUTERS/Tomas Bravo (MEXICO - Tags: SOCIETY) 

Spain's Economy Minister Luis de Guindos rubs his eye at the start of weekly cabinet control session at Madrid's Parliament July 18, 2012. REUTERS/Sergio Perez (SPAIN - Tags: POLITICS BUSINESS) 

A girl rubs her eyes as smoke rises from a burning effigy of the demon Ghantakarna, symbolizing the destruction of evil, during the Ghantakarna festival at the ancient city of Bhaktapur July 17, 2012. According to legend, the demon is believed to "steal" children and women from their homes and localities. REUTERS/Navesh Chitrakar (NEPAL - Tags: RELIGION SOCIETY)