A whitish circle after corneal transplantation is usually normal and may also be caused by eye infection. After corneal transplantation, if the patient’s cornea is white around the periphery, it is usually caused by corneal scarring, which is a normal recovery process, and the patient is usually not accompanied by other uncomfortable symptoms. After corneal transplantation, corneal scar tissue often occurs at the corneal suture site, and thus the patient’s peripheral corneal whitening may appear, usually in a stable state. If inflammatory infiltration occurs around the cornea after corneal transplantation, the patient’s cornea may also show peripheral whitening of the cornea, and the infiltrating lesions may gradually worsen with the development of the disease. Inflammatory infiltration is mostly caused by local infection, postoperative rejection reaction, etc. Patients need to consult the doctor in time, and use tobramycin eye drops, tacrolimus eye drops, etc. as prescribed by the doctor to promote the recovery of the condition. It is recommended that patients after corneal transplantation follow the doctor’s instructions for care, regular checkups, and prompt medical attention when discomfort occurs.