Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Eyelid 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.
View detailsOrbital 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.
Orbital 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.
View detailsBacterial conjunctivitis
Bacterial conjunctivitis is a common infectious eye disease characterized by purulent inflammation of the conjunctiva caused by bacterial infection. It can affect people of all ages, but is more common in children. Symptoms primarily include red eyes, increased discharge, foreign body sensation, photophobia, tearing, and eyelid edema.
View detailsOptic nerve avulsion
Optic nerve avulsion is the result of various causes leading to strong, acute traction on the optic nerve, causing the intraocular segment of the optic nerve, along with the scleral lamina cribrosa, to detach from the scleral canal. Clinically, it is classified into partial avulsion and complete avulsion based on the degree of injury. Typically, immediate blindness occurs after avulsion. In cases of partial avulsion, some vision may be retained.
View details