Public condition directory
Browse public condition summaries from China medical resources by stable specialty category.
Presbyopia
Presbyopia, commonly known as "farsightedness," is a physiological condition where the eye's accommodative ability (amplitude of accommodation) gradually declines with age, leading to symptoms such as difficulty seeing near objects. It typically begins between 40 and 45 years of age. Symptoms include blurred vision for near objects, eye strain, eye pain, and photophobia.
View detailsPleomorphic adenoma of lacrimal gland
Pleomorphic adenoma of the lacrimal gland is a benign tumor originating from the lacrimal gland epithelium and is the most common lacrimal gland tumor. Pleomorphic adenoma of the lacrimal gland is often located in the outer region of the upper eyelid, presenting as a painless swelling, and is a type of tumor containing multiple tissue components.
View detailsLacrimal gland adenoid cystic carcinoma
Lacrimal gland adenoid cystic carcinoma is a malignant tumor originating from the myoepithelium of the lacrimal gland ducts. It is the most common malignant tumor of the lacrimal gland. This disease is common in people aged 30-40, with a higher incidence in females. The main symptoms include eye pain, headache, a mass in the superolateral orbit, and restricted eye movement.
Dacryoadenitis
Dacryoadenitis is a general term for inflammatory diseases of the lacrimal gland tissue caused by various factors. It can be divided into two types: Acute dacryoadenitis: Less common, often occurring in one lacrimal gland. It is more common in children and adolescents. The main manifestations include fever, redness, swelling, and pain in the lacrimal gland area, tearing, or purulent discharge. Chronic dacryoadenitis: More common, often occurring in both lacrimal glands simultaneously. The disease develops slowly and is a slow proliferative inflammation characterized by a painless local mass.
View detailsEctropion
Ectropion is an abnormal condition in which the eyelid margin turns outward and away from the eyeball. Mild cases only show the eyelid margin separating from the eyeball; severe cases present with exposed palpebral conjunctiva and even incomplete eyelid closure. The main symptom is epiphora. Patients with corneal complications may experience pain, photophobia, tearing, and decreased vision.
View detailsSympathetic ophthalmia
Sympathetic ophthalmia is a type of uveitis, typically referring to a phenomenon where both eyes develop uveitis (including the uninjured eye) after a penetrating injury or surgery to one eye. The injured or surgically treated eye is called the exciting eye or inciting eye, and the uninjured eye is called the sympathizing eye. Sympathetic ophthalmia is the general term for this condition. The main symptoms include photophobia, tearing, pain, and blurred vision.
View detailsCorneal dermoid
Corneal dermoid is a tumor-like congenital anomaly originating from embryonic skin. The mass is covered by epithelium and composed of fibrous and adipose tissue, which may also contain hair and hair follicles, sebaceous glands, and sweat glands. The lesion generally invades the superficial stroma of the cornea, occasionally reaching the full thickness of the cornea or even extending into the anterior chamber. The mass is often located in the inferotemporal bulbar conjunctiva and limbus, appearing as a round, pale yellow, solid mass with fine hairs on its surface.
View detailsCorneal degeneration
Corneal degeneration is a regressive change in corneal tissue caused by certain pre-existing diseases, leading to a decline in corneal function. There are many types of corneal degeneration, including arcus senilis, band keratopathy, Terrien's marginal degeneration, and corneal amyloidosis. Among these, arcus senilis is common, while other types are rare.
View detailsCorneal contusion
Corneal contusion is a type of ocular trauma caused by blunt force impact, high-pressure gas, or liquid striking the cornea, leading to damage of the corneal tissue. This condition is common in children and manual laborers. The main symptoms include decreased vision, pain, photophobia, tearing, ciliary congestion, and contusion-induced corneal edema.
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