{"@context":"https:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/www.eyecliniclondon.com\/blog\/what-is-the-cornea-and-what-are-its-functions\/#BlogPosting","mainEntityOfPage":"https:\/\/www.eyecliniclondon.com\/blog\/what-is-the-cornea-and-what-are-its-functions\/","headline":"What is the cornea and what are its functions?","name":"What is the cornea and what are its functions?","description":"The cornea is the clear window of the eye. It is a dome-shaped clear surface that covers the front part of the eye. There are 5 basic layers to the cornea...","datePublished":"2016-03-03","dateModified":"2025-03-28","author":{"@type":"Person","@id":"https:\/\/www.eyecliniclondon.com\/blog\/author\/admin\/#Person","name":"Admin Panel","url":"https:\/\/www.eyecliniclondon.com\/blog\/author\/admin\/","identifier":28,"image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/81c1e6be7e7eb7c8db707d305c1cbb46?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/81c1e6be7e7eb7c8db707d305c1cbb46?s=96&d=mm&r=g","height":96,"width":96}},"image":{"@type":"ImageObject","@id":"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2016\/03\/Blog-what-is-the-cornea-and-what-are-its-functions-Samer-Hamada-eye-clinic-london.jpg","url":"https:\/\/www.eyecliniclondon.com\/blog\/wp-content\/uploads\/2016\/03\/Blog-what-is-the-cornea-and-what-are-its-functions-Samer-Hamada-eye-clinic-london.jpg","height":500,"width":900},"url":"https:\/\/www.eyecliniclondon.com\/blog\/what-is-the-cornea-and-what-are-its-functions\/","about":["Info Articles"],"wordCount":152,"keywords":["cornea","eyes"],"articleBody":"What Is The Cornea? Everything You Need To KnowThe cornea is the clear window of the eye. It is a dome-shaped clear surface that covers the front part of the eye. The cornea is a vastly structured group of collagen layers and cells and has no blood vessels to sustain and defend it against infection. Tears instead, nourish and protect the cornea.There are 5 basic layers to the cornea, from the outside in, epithelium, Bowman\u2019s layer, stroma, Descemet\u2019s membrane and endothelium. The cornea has two main functions. As with a camera, the cornea acts as the eye\u2019s outer lens. It regulates and focuses the entrance of light into the eye and contributes between 65-75% of the eyes focusing ability. The second function is to act as a barrier from dust, germs and other debris getting into the eye, it works with the eyelids and tears to do this."}