The cornea is the clear, dome-shaped surface covering the front part of the eye. The main function of the cornea is to help focus light on the retina and to protect the iris and lens.  
   

 

 

 
The Eye Bank of Canada, Ontario Division
Department of Ophthalmology
University of Toronto
1929 Bayview Avenue
Toronto, Ontario, Canada
Phone: (416) 978-7355, Fax: (416) 978-1522, Email: eye.bank@utoronto.ca
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