Some patients may experience elevated IOP after ICL implantation, which should be treated differently depending on the cause of the elevated IOP. The degree of IOP elevation is directly proportional to the amount of residual viscoelastic. If the IOP is above 30 mmHg and the patient does not have obvious eye distention or migraine, the patient can continue to be observed without treatment. If the IOP is above 30 mmHg or the patient has eye distension, migraine, nausea, etc., the IOP should be lowered and, if necessary, secondary surgery should be performed to remove residual viscoelastic and release some of the atrial fluid until the IOP is within a manageable range. Another cause of IOP elevation may be related to the absence of a preoperative or intraoperative iris root perforation or a small or impermeable perforation, which is usually urgent and serious and requires immediate YAG laser perforation of the iris root or reoperative iris root perforation (YAG laser perforation is recommended for safety). The third cause of high IOP may be related to the narrow ciliary sulcus (usually the crystal arch is more than 1mm high) or partial blockage of the atrial trabecular meshwork. In such cases, the ICL lens should be removed. In addition, if the IOP starts to rise slowly over a period of 1 week, it is usually necessary to pay attention to the presence of hormonal hypertension. High myopia is a hormone-sensitive group, and the use of hormonal eye solutions is likely to induce high IOP, so special attention should be paid and regular follow-up is necessary.