Corneal edemaCorneal edema is a common complication after cataracts surgery and most of the time it will be transient and after few days post surgery it will decrease and the cornea become clear again. Many factors will be responsible for it and these factors are: 1- High ultrasound time in Phacoemulsification surgery. In which there will be shutdown of the endothelium layer in the cornea that is responsible for keeping the cornea clear. 2- Old age patient in which the corneal endothelium layer is not functioning well. The function of corneal endothelium is to pump out the fluid from the cornea and prevent any extra fluid to enter inside the cornea and these two function will prevent the occurrence of corneal odema 3- Contact between the probe of the phaco and the endothelium layer. It can be transient or permanent depend on the amount of endothelium cells damage 4- Previous corneal diseases which affect the endothelium layer Treatment of this condition is usually treated by observation. Sometimes in severe cases we can add hypertonic sodium chloride ointment to absorb fluid from the cornea. In case of chronic corneal odema, bullous keratopathy might occur, in which the cornea will become hazy and there will areas of fluid collection called bullae. The only treatment of bullous keratopathy is corneal graft surgery
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