Patients with severe ptosis have a higher degree of visual dysfunction than those with mild to moderate ptosis and require surgery as soon as possible once diagnosed. Currently, the corrective procedures for severe ptosis can be categorized as levator palpebrae shortening, frontalis suspension, conjoint fascial sheath suspension, and combined procedures. However, due to the variety of procedures, there is no uniform standard for the selection of each procedure. This article describes the classification and severity evaluation method of ptosis. The correction method of severe ptosis, their indications as well as the pros and cons of each method were comprehensively summarized and compared, trying to provide the best treatment strategy for patients with severe ptosis.

Patients with severe ptosis have a higher degree of visual dysfunction than those with mild to moderate ptosis and require surgery as soon as possible once diagnosed. Currently, the corrective procedures for severe ptosis can be categorized as levator palpebrae shortening, frontalis suspension, conjoint fascial sheath suspension, and combined procedures. However, due to the variety of procedures, there is no uniform standard for the selection of each procedure. This article describes the classification and severity evaluation method of ptosis. The correction method of severe ptosis, their indications as well as the pros and cons of each method were comprehensively summarized and compared, trying to provide the best treatment strategy for patients with severe ptosis.