New Structure Found in Human Cornea

The discovery of a thin, durable layer near the back of the cornea may lead to safer corneal surgeries.

Written byChris Palmer
| 2 min read

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A new structure has been found on the human cornea.WIKIMEDIA, PETR NOVAK

At a mere 15 microns thick, an incredibly strong layer has been discovered sandwiched within the human cornea. The new layer is called Dua’s layer, after its discoverer Harminder Dua, an ophthalmologist at the University of Nottingham. Dua and his team published their findings in the journal Ophthalmology.

Previously, the human cornea, which is approximately 550 microns thick, was thought to be comprised of five layers: from front to back, the corneal epithelium, Bowman’s layer, the corneal stroma, Descemet’s membrane, and the corneal endothelium. Based on clinical experience with corneal transplants, Dua suspected a layer existed between the corneal stroma and Descemet’s membrane. To prove the existence of this layer, Dua’s team carried simulated corneal transplantations on several donated human eyes. These surgeries typically involve ...

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