The cornea is a clear, thin film-like tissue at the front of our eye that acts as a clean window to protect our intraocular tissues and allow external light to pass through, and any injury or lesion that causes corneal clouding will greatly affect our vision, even to the point of blindness. Because corneal tissue is sensitive and fragile, under normal circumstances, any object that comes near the cornea will produce a reflexive transient behavior to protect it. However, in real life, there are always preventable phenomena that can cause serious damage to the cornea, the most common being keratitis and trauma. Keratitis is an acute and chronic inflammatory response to a viral or bacterial infection of the cornea. If not treated promptly and adequately, the cornea cannot be restored to transparency, and even if the inflammation subsides, the cornea will become a piece of “hairy glass. Therefore, once you find that your eyes are red and accompanied by foreign body sensation, tearing, fear of light and other feelings, you should quickly go to the hospital, especially patients wearing contact lenses, no matter what kind of lenses can not be worn overnight, care solution such as contamination can not be used again, it is best to take off the lens after the usual drops of non-irritating antibiotic eye solution to prevent corneal infection. Another common cause is trauma, including iron filings at work, acid and alkaline chemical spills, welding light burns the cornea, scissors and other sharp edges poke the cornea and so on. Such damage can cause severe pain in the eye and the inability to open the eye, or it can lead to irreparable damage to the cornea, resulting in a white scar that not only affects the appearance, but can also lead to loss of vision. Since the consequences of such injuries are very serious, it is important to wear protective masks or glasses during related work, to flush with water if chemical agents get into the eyes, and not to give children toys with sharp needles, etc. Once the damaged cornea can not be restored to transparency under the action of drugs, then this piece of “hairy glass” will need to be replaced with a new piece of clear glass to enable patients to see again, such surgery is the corneal transplantation. In our municipal hospital ophthalmology, our ophthalmology department is the only one that carries out corneal transplantation surgery and has a history of more than 40 years. With the continuous improvement of ophthalmic equipment and surgical techniques, corneal transplantation is becoming more and more widely used. Corneal scarring, corneal dystrophy and degeneration, bacterial or viral corneal ulcers, nibbling corneal ulcers, chemical or thermal injuries with superficial neovascularization, corneal endothelial function loss after intraocular surgery, etc. can all undergo corneal transplantation. However, since the source of corneal transplantation is currently limited to humans themselves, it is difficult to obtain, and many patients who could undergo corneal transplantation lose the opportunity to regain their sight due to the lack of raw materials. So here we should not only emphasize the importance of protecting the cornea and not letting the windows of our hearts become dusty, but also call on the community to actively carry out corneal donation activities for the benefit of the majority of corneal disease patients, passing on their bright eyes to others in future generations to see the world forever!