Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Eyelid malformations
Eyelid deformities are mostly caused by trauma, infection, tumor resection surgery, etc. After scar contracture, they can lead to abnormal conditions such as asymmetrical eyelid shape, ectropion, and incomplete eyelid closure.
View detailsSebaceous carcinoma of eyelid
Eyelid sebaceous carcinoma is a malignant tumor originating from sebaceous gland cells (cells that secrete sebum). It is more common in elderly individuals and frequently occurs in the eyelids, face, and scalp. Early manifestations often include painless, yellowish or orange-yellow nodules on the eyelid.
View detailsEyelid trauma
Eyelid trauma refers to varying degrees of damage to eyelid tissues when the eyelid is struck by a blunt object or cut by a sharp instrument. The main symptoms include periorbital ecchymosis and swelling, eyelid hemorrhage, hematoma, eyelid laceration, and ptosis.
Orbital cavernous hemangioma
Histopathologically, orbital cavernous hemangioma is not a true neoplasm but a tumor-like malformation. It is a common benign intraorbital tumor. It typically occurs after youth, with a higher incidence in females than males. Mild orbital pain is the most characteristic symptom of this condition.
View detailsOrbital lymphangioma
Orbital lymphangioma is a hamartomatous tumor composed of lymphatic vessels that occurs within the orbit. The main manifestations of this disease include eyelid swelling and intermittent proptosis.
View detailsOrbital cyst
An orbital cyst is a benign, fluid-filled mass that develops in the orbit. It can occur at any age. These cysts are often found along the superior orbital rim, presenting as soft, smooth, elastic, immobile, and non-tender masses.
View detailsOrbital lipoma
Orbital lipoma is a type of lipoma that occurs within the orbit, and it is a benign tumor. It is more common in adults, with occasional cases reported in children.
View detailsPersistent pupillary membrane
Persistent pupillary membrane (PPM), also known as persistent pupillary membrane, is a remnant of incomplete absorption of the vascular membrane on the surface of the lens during the embryonic period. During fetal development, the lens is surrounded by a vascular membrane, which completely absorbs and disappears by the 7th month of gestation. If this normal atrophy and absorption is abnormal, it will lead to the persistence of pupillary membrane. The persistent pupillary membrane itself is avascular, and its pigmentation usually develops secondarily after birth.
View detailsAniridia
Aniridia is a bilateral developmental disorder characterized by congenital iris hypoplasia or absence of a normal iris. It can be accompanied by various eye conditions, such as corneal opacity, microcornea, lens dislocation, cataracts, glaucoma, macular hypoplasia, strabismus, and nystagmus, affecting the entire eyeball. The main symptoms include photophobia, frowning, squinting, poor vision, and potentially progressive vision loss.
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