Corneal transplantation is a kind of allograft organ transplantation. It is to replace the turbid or diseased cornea with transparent and healthy donor corneal tissue to improve vision or treat some corneal diseases, and also to achieve certain cosmetic effects.
The cornea itself does not contain blood vessels, and because of the combined effects of various factors and mechanisms, the success rate of corneal transplantation is the first among other allograft organ transplantation.
However, most patients after corneal transplantation have photophobia, foreign body sensation, pain, tearing, difficulty in opening eyes and other symptoms, which can lead to patients being unable to cooperate with postoperative treatment and nursing, and directly affect the recovery of corneal epithelium after surgery.
The doctor immediately wore a corneal bandage lens after the operation and took corresponding nursing measures. It was found that the effect of alleviating the above postoperative discomfort was better. What happened? Let's have a look.
Postoperative care
△ At the end of the operation, the surgeon shall wear a corneal bandage lens for the patient, and bind the eye with an eye pad and eye mask on the operation day, and release it the next day.
△ Observe the position of the corneal bandage lens under the slit lamp every morning to see if there is any shedding or displacement; At the same time, ask the patient to blink several times and observe the movement of the corneal bandage lens. When moving up, down, left and right, it is appropriate not to exceed the corneal limbus, and the patient has no discomfort.
△ The eyedrops should not be directly dropped on the lens, but should be dropped into the lower conjunctival sac to avoid affecting the absorption of drugs. Do not use eye ointment to prevent it from affecting the oxygen permeability and water absorption of the corneal bandage lens.
△ When there are many secretions in the affected eye, in order to prevent protein sediment from depositing on the bandage mirror, the conjunctival sac is washed with normal saline; When doing eye operation, the action should be gentle, do not press the eyeball; To prevent the lens from falling off, ask the patient not to squeeze or rub the eyes forcibly.
△ The bandage mirror should be replaced every 4 days, generally for 7-10 days; Choose foods that are easy to digest and rich in nutrients, avoid stimulating diets, eat more vegetables and fruits, and keep your stool smooth.
Corneal bandage lens is developed on the basis of hydrophilic soft corneal contact lens. Its main component is silicon hydrogel, which has high water content and high oxygen permeability.
The continuous wearing of corneal bandage lens can alleviate the pain symptoms caused by corneal diseases, protect the cornea and promote corneal wound healing. Many domestic companies reported that the corneal bandage lens has a good effect in treating corneal epithelial defects and relieving the pain of patients after pterygium surgery and other eye irritation symptoms.
In addition, studies have shown that during the repair of corneal epithelium, the shearing force caused by eyelids blink can lead to the shedding of new corneal epithelium, and the bandage contact lens can well protect the integrity of new corneal epithelium. In addition, it can also form a stable tear film and provide a scaffold for the migration of epithelial cells, significantly shortening the healing time of corneal epithelium after corneal transplantation, At the same time, it also effectively alleviates various discomfort of patients after surgery.
The research results show that after corneal transplantation, patients wearing corneal bandage lens can effectively relieve pain and various discomfort symptoms at the early stage after the operation, so that patients can actively cooperate with various treatments and nursing, and improve the quality of life of patients after the operation.