Marussia test driver Maria de Villota has lost her right eye as a consequence of her testing accident at the Duxford Aerodrome on Tuesday.
The Spaniard collided with a team transporter during straight line aero testing where her helmet struck the tailgate of the vehicle.
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De Villota is currently in critical but stable condition.
Marussia's team boss John Booth issued a statement on Wednesday after a surgical team at Addenbrooke's Hospital in Cambridge operated on the 32-year-old.
The statement confirmed that de Villota has lost her right eye in the accident.
“We are grateful for the medical attention that Maria has been receiving and her family would like to thank the Neurological and Plastics surgical teams,” said Booth.
“However it is with great sadness that I must report that, due to the injuries she sustained, Maria has lost her right eye.
“Maria's care and the well-being of her family remain our priority at this time. Her family are at the hospital and we are doing everything possible to support them.
“We ask for everyone's patience and understanding with regard to updates on Maria's condition. We will provide further information when it is appropriate to do so and with consideration for her family.
“In the meantime, we would all like to take this opportunity to praise the emergency services at Duxford Airfield, who were on stand-by yesterday, as is usual procedure for a Formula One test.
“With regard to the accident, we have embarked on a very comprehensive analysis of what happened and this work continues for the moment.
“Finally, we have been overwhelmed by messages of support for Maria, her family and the team and we would like to express our sincere gratitude for those.”