Corneal detachment generally refers to corneal epithelial detachment, which can be cured, while corneal detachment caused by deep corneal injury can permanently affect vision. The cornea is divided into five layers, the top layer of corneal epithelial cells is a very strong regenerative ability of the cells, when due to trauma and other factors occur after the shedding of corneal epithelial cells can quickly proliferate to fill in the shedding of the tissue, usually about 24 hours can be restored. The deeper layers of the cornea are non-regenerative, and corneal detachment caused by deep corneal injury will permanently affect vision and cannot be recovered. When patients experience corneal detachment, it is recommended that they seek medical treatment in a timely manner. Medications such as growth factors can be used to promote corneal healing in order to avoid serious complications such as corneal ulcers that affect the deeper layers of the cornea.